Whatever the Mind Can Conceive and Believe, Within Reason

"Whatever the mind can conceive and believe, it can achieve" is Napoleon Hill's line from Think and Grow Rich, published in 1937. It means that a goal you can picture clearly and hold with real conviction is one you can reach, provided you back it with a plan and act on it. Kevin Trudeau says the version on the posters is missing something. In a conversation with Dylan Gemelli published on September 9, 2026, he argues that Hill's original wording carried two more words, "within reason," and that the success industry dropped them. The 1937 text does carry that qualifier, twice, and one of those two places sits in the paragraph right after Hill's own "conceive and believe" sentence.

That matters because the two words change what the quote asks of you. With them, it is an instruction to pick a target you can actually hit. Without them, Trudeau says, it becomes a promise that keeps people chasing things they have no path to. This article covers what the quote means, where Hill wrote the qualifier, what the two men say about credentials, mentors, excuses and chasing money, and how the whole 48-minute conversation is chaptered. Every claim Trudeau or Gemelli makes is reported here as their claim.

What "Whatever the Mind Can Conceive and Believe, It Can Achieve" Means

Napoleon Hill (1883 to 1970) wrote Think and Grow Rich after what he said were decades of studying wealthy men, and the book became one of the best-selling self-help titles ever printed. The line most people know from it is the one on the poster. Hill's own wording is usually given as "Whatever the mind of man can conceive and believe, it can achieve," and shorter forms drop the "of man."

Read inside Napoleon Hill's book rather than on a mug, the quote has three moving parts.

• Conceive. Hill's word for a definite mental picture of the result. Not a mood. A specific outcome with an amount, a date and a plan attached, which is what his Desire chapter asks the reader to write down.
• Believe. Hill's Faith chapter treats belief as a state you build on purpose, through repetition, until the goal feels settled rather than hoped for. Trudeau's reading of this word is the sharpest part of his argument, and it is covered below.
• Achieve. The result, which in Hill's system arrives through organized planning, persistence and action, not through the believing alone.

So Hill's quote is a claim about the order of operations. Conception and belief come first, the achieving follows, and the book spends its remaining chapters on the plans and persistence that connect them. Whatever the mind can conceive and believe, in other words, is the raw material; the power to accomplish it comes from what you do with the plans. What the quote does not say, in the poster form, is whether every conceivable goal is on the table. That is the gap Trudeau walks into.

The Two Words Kevin Trudeau Says Everyone Dropped: "Within Reason"

About 46 minutes into the video, Trudeau names what he calls the biggest lie in the success business. His words: "the biggest lie being perpetrated out there is the line that says you can be, do and have anything and everything you want." Then he goes to Napoleon Hill. He quotes the familiar sentence, and adds that Hill's original phrase "said at the end, whatever the mind of man can conceive and bring itself to believe, it can achieve, within reason." People forgot that part, he says, and it went out of the book.

Here is where the record sits. The one-sentence form that travels today is the distilled version. In the 1937 first edition the idea reads a little differently, and Napoleon Hill did write "within reason" into that edition, in two places.

The first is in the chapter on Imagination, on page 127 of the first edition: "Man's only limitation, within reason, lies in his development and use of his imagination." The second is in the closing chapter, "How to Outwit the Six Ghosts of Fear," in a passage about men who ignored the doubters around them. Hill writes that Thomas Edison "knew that the mind could produce anything the mind could conceive and believe," and two sentences later that F. W. Woolworth "knew that he could do anything, within reason, if he backed his plans with faith." The two paragraphs run back to back on pages 368 and 369, so the qualifier sits as close to the conceive-and-believe idea as it could without being in the same sentence.

So Trudeau's point holds on the substance. Hill put a limit on "anything" in the very book the quote comes from, and the version that travels without it is an edit. Whether the two words were ever attached to the famous sentence itself is a matter of which edition and which page you hold; what is not in dispute is that Hill wrote them, and that he wrote them about the same idea.

Belief means certainty, not a wish

Trudeau's second move is about the word "believe." His claim is that most readers treat it as hoping. "You have to 100 percent believe you can achieve it," he says. "It's not a wish. Belief in that context means I am confident with 100 percent certainty I can get this. If you can't get to that level, you can't get it."

That reading is closer to Hill's than the poster version is. Hill's Faith chapter is a set of instructions for manufacturing conviction through repetition, and the foundation of the whole method is that belief is built, not found. It assumes the goal is one the reader can honestly hold as settled. A goal you cannot bring yourself to believe with certainty fails Hill's own test before the achieving is ever in question. Trudeau's version simply says the quiet part: if certainty is the price of admission, some goals cannot pay it.

The heavyweight champion test

His example is himself. "I want to become the heavyweight boxing champion of the world. I am not going to do that. There's no chance on God's green earth I am ever going to be, and I really do." He says he always wanted it and it never happened, and that it never will. He adds Tiger Woods for good measure: wanting to play like him is not the same as a plan to.

The example is deliberately silly, and that is the point. Nobody argues with it, and nobody needs research to agree with it, which makes it a clean test for the poster version of the quote. If "anything you want" cannot survive a man in his sixties wanting a heavyweight title, then it needs the qualifier, and the qualifier is the two words Trudeau says were dropped.

Why Trudeau Calls "You Can Have Anything You Want" the Biggest Lie in Success

His argument is not that dreaming is bad. It is that the unqualified promise produces disappointment, then quitting. In his words: "the people out there that are on stage saying you can do it, anything you want, you can have, they are lying and they're keeping people broke, because people then are shooting for things that they have no chance of ever achieving. They're going to be disappointed."

Gemelli's version of the same complaint comes earlier in the conversation, when Trudeau asks him about the biggest lies people are taught about making money. "Everybody's got some sort of shortcut that leads to a longer road," Gemelli says. "Everybody's got the next get rich quick scam. Do this. Take this shortcut." Later he puts it more bluntly. He has no time for "people that sell a dream," says he does not sell anything, and adds: "I give you a reality."

None of this is a case against ambition, or against big ideas. It is a case for a sequence, and for being clear about which step you are on.

Dream big, then ask what the next logical step is

Trudeau's sequence, in his own order: "Dream. Yes. Think big. Yes. Fantasize. Yes. But then come back and say, okay, what's my next logical step? What's my objective? What's my target that I know that I can hit? Let me focus on that. And then one step at a time." He attaches two sayings to it. The first is "inch by inch it's a cinch, yard by yard it's hard." The second he credits to Gordon Ramsay: it is good to have a dream, but do not live in a dream world.

The closing line of that stretch is the practical instruction: "Let me go as far as I can see. And when I get there, I'll see." That is a reasonable reading of Hill's qualifier turned into a habit. The dream sets the direction. The next logical step is the only thing you are ever actually working on, and the mistake he is warning against is confusing the two.

Who Do You Listen To? Life Credentials Against Paper Credentials

The conversation opens on a question Trudeau puts to his guest directly: why should anyone listen to either of them about money, health or happiness? "What credentials do we have?"

Gemelli's answer is "life credentials." He says he does not need "900 letters after my name" and would rather learn from people who have lived a thing than from people repeating a textbook. His test for whether a teacher is worth hearing is how they handle a question. "When they get mad and they get angry, that's when you know you can't trust them, because they don't have the answer."

Trudeau's version is about order. He says most people teaching how to get rich never made money before they started teaching, and that his own path ran the other way: he built and ran operating companies for years before he gave a lecture on anything. That is his account of his own career, and the site's record of what happened to Kevin Trudeau covers the parts of it that made news.

The reporter and the 150 names

His story about the first time his credibility was attacked comes from the days of his first training company, the American Memory Institute, which is the same material behind his Mega Memory course. He says he met about 150 people before a Chamber of Commerce talk in New York, then went around the room and named every one of them, first and last name. A reporter with degrees from Columbia asked what qualified a man with no college education to teach a class on memory. His reply, as he tells it: "I remembered 150 people's names, first and last. How many can you remember with all your degrees from Columbia?" His verdict on her: "Clearly you don't qualify."

He extends the point to Edison, Einstein, Tesla, Musk and Steve Jobs, whose results, in his telling, outran their qualifications. Take the list as his argument rather than a set of biographies. The claim underneath it is the one that survives scrutiny: a credential is a proxy for the ability to do a thing, and when you can watch the thing being done, the proxy is beside the point. History is not short of people who did the thing first and collected the paper later, or never.

The Wealth Wave, the Room You Walk Into, and Why Everyone Says "I Had a Mentor"

Trudeau calls the next section "one of the best kept secrets of making money." It is the part of the video that overlaps most with his earlier work, so this article keeps it short and points you to the fuller versions.

His claim is that the brain both sends and receives frequency, that wealthy people broadcast at the border of alpha and theta, which he calls the wealth wave, and that people who struggle financially broadcast in beta, which he calls the poverty wave or slave wave. Walk into a bar full of people complaining, he says, and your brain behaves like a tuning fork and drifts toward the room. Walk into a room full of people building things and it drifts the other way. That is his claim, not established neuroscience, and the brainwave bands themselves are explained separately in his article on the theta state and in the three parts of your mind.

From there he reaches for a line he attributes to Aristotle Onassis: your income will be the average of the five people you spend the most time with. That line is more often credited to the speaker Jim Rohn. Quote Investigator traced its earliest close match to a 2005 book by Jack Canfield that credits Rohn, and calls the evidence weak either way. Whoever said it first, Trudeau's use of it is the same as everyone else's: you mimic the speech, the posture and the thinking of the people around you, so choose the people.

Mike Sigel, Irving Crane, and the mimicry chain

His example is pool. Trudeau describes his friend Mike Sigel as a ten-time world champion, and the Billiard Congress of America inducted Sigel into its Hall of Fame in 1989, at 35, the youngest man to get there at the time. Trudeau says he watched Sigel play for years, and that a stranger once told him he stood and played exactly like Sigel, mannerisms included. Sigel, he says, had done the same thing as a kid watching Irving Crane, the six-time World Straight Pool champion known as The Deacon. "I watch Irving and I go, that's Mike. And then I watch Mike, and that's me."

The chain is his illustration of what a mentor actually transfers. Not information. Behavior, copied without deciding to copy it, and corrected by feedback you did not ask for. Which is also why he treats the choice of room as a decision rather than a circumstance, a theme he develops at length in his Masterclass on negative people.

Excuses, Champions, and the Scratch on the Break

Gemelli's contribution here is the phrase "built-in excuses." He says that when he looks back at every piece of trouble he got into, he can trace it to the people he was spending time with, and that he "became what I hated." His objection is to explanations that arrive pre-installed. He lists them, gender, race, circumstance, and answers them himself: "It's not. It never was." He is careful to add that those things exist. His point is that they are used as an excuse for an inadequacy that a mirror would explain faster.

Trudeau compresses it: "Failures are always good at one thing: making excuses." Gemelli's reply is that "they have a problem for every solution." Both men treat a challenge as the price of the goal rather than evidence against it.

The champion and the loser, in one scratch

Trudeau's story is from a pool championship he says he had just flown in from. A player was one game from losing and the other man had the break, which in that format is a large advantage. Someone next to Sigel said it was over. Sigel said, "You don't know that. Anything could happen. He could scratch on the break." The man scratched on the break, the trailing player ran out, and won. Sigel's lesson, as Trudeau reports it: "That's the difference between a champion and a loser. I never thought I was out of it. I always thought something can happen."

Patton, the body, and the will

Trudeau says he once produced a program on General George S. Patton and leadership, and he paraphrases Patton's rule as "your body will always yield to the will of the mind." The documented version, recorded by Porter B. Williamson in his 1979 book Patton's Principles, runs: "Make the mind run the body. Never let the body tell the mind what to do. The body will always give up."

Trudeau's own version of the lesson is a hike in Calabasas, where a man he had never met passed him in the last hundred yards of a twelve-mile trail. The man, he was told, had climbed Everest twice the previous year. Asked through an interpreter about his mindset, the climber said the body will tell you it is tired and that you do not listen to it. Trudeau's extension is characteristic: "The universe also yields to your will when you make a decision. I'm going to do it. That's it. Period." That last part is his belief, offered as such.

Prison, Accountability, and "Every Saint Has a Past"

Both men have served time, and the middle of the conversation is about what that did to them. Trudeau frames it with a joke from a room of wealthy friends: "If you weren't indicted, you weren't invited."

Gemelli's account is his own and is reported here as he tells it. He was modeling in Italy, wanted a lifestyle the work could not pay for, and came home to run what he describes as "a straight up business plan" to sell as much cocaine as he could "with no exit strategy of any kind." He says he received a 15-year sentence in Iowa, that the state's rules cut it in half at the door, and that he was paroled to Maui, where his parents had moved, on July 4, 2011. He says he trained at 3:30 every morning inside, never saw a parole board, and started his life again from nothing. The 15th anniversary of that release fell this summer.

Trudeau's account of his own time is briefer. He describes it as a contempt of court matter connected to his books, says he served federal time, and maintains he did nothing wrong. The public record, including the sentence and the 2022 release, is laid out on the site's 2026 update on what he is doing now. Both accounts are the men's own.

"A good person who did terrible things"

The line Trudeau carries out of prison came from a man he calls Art, who told him he had sold drugs for years, used a rifle, done "a lot of bad things," and was grateful to have been caught. Art's summary of himself: "I'm a good person who did terrible bad things." Trudeau gave him a sentence in return, "Every saint has a past, and every sinner a future," and says Art told him he would hold on to it for the rest of his life. The line is Oscar Wilde's, from his 1893 play A Woman of No Importance, where Lord Illingworth says it in full: "The only difference between the saint and the sinner is that every saint has a past, and every sinner has a future."

The lost art of accountability

Gemelli calls his own version "the lost art of accountability," which is also the title of an episode of his podcast. When people ask how he overcame prison, his answer is that he did not overcome anything: "I caused it. You can't say overcome something I caused. I got through it." His practice is to say the uncomfortable thing out loud, in a mirror, because "when you say something out loud, it's very, very hard to go back to that excuse making."

Trudeau's explanation for why that works is his own theory. He says most of what you hear of your own voice reaches your brain through bone rather than through the eardrum, so speaking a statement aloud registers in a way that merely hearing it does not. He offers no source for the figures he uses, and they are not repeated here as fact. What is verifiable is the habit itself: he says he talks to himself all day, in the form of a running pep talk, and that people who do his "fly on the wall" training, living in his house for 24 hours as silent observers, invariably remark on it. "I'm programming myself for success," he tells them.

Why Chasing Money Makes You Miserable, According to Both Men

When Trudeau asks Gemelli for the biggest lie in success, Gemelli does not name a slogan. He names a season of his own life: "When your whole life is around chasing it and you lose sight of everything else around it, you're the least successful." He says the years when every waking thought was about how much money he could make were the most miserable he has had, and that the most money he has made came after he stopped, and cared instead about his impact, his family and a morning that starts with gratitude. He is quick to add that anyone who tells you they do not care about money should be run from.

Trudeau's summary is two lines. "It was always chasing instead of understanding," and "The journey is the reward." Then he reaches for scripture, and gets the reference right: Matthew 6:33, "seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you." His reading is about sequence, which is the same argument he makes about whatever the mind can conceive and believe: true in the right order, and a trap in the wrong one. Seek the right thing first, he says, and the money, the status and the relationships arrive in their order. Seek them first and you get the chase.

Gemelli's closing formula is the one the video's last chapter is named for. "The real way to teach people to be successful is to know how to overcome adversity, to have accountability, and to never be willing to take no for an answer. Those are the keys." Trudeau answers with the proverb he closes on, fall down seven times, get up eight, which is usually given as the Japanese nana korobi ya oki.

Where This Sits in Kevin Trudeau's Wider Teaching

Readers who know his material will recognize the shape of the argument. His four-step formula puts belief second and expectancy third for the same reason he insists on "within reason": a goal you cannot hold with certainty is one the sequence cannot carry. His case against positive thinking makes the same objection from the other side, that a slogan without a plan under it is not a method. And the teachability index is his answer to Gemelli's question about who deserves to be listened to.

Hill himself is the foundation under all of it. Trudeau's recommended reading list carries Think and Grow Rich near the top, and the site's review of the 1937 original covers the thirteen steps in full, with The Law of Success and Success Through a Positive Mental Attitude reviewed alongside it. The quote makes more sense with the book around it, which is roughly Trudeau's whole point: read whatever the mind can conceive and believe as one line of a method, and you discover the method is what carries it.

What the Conversation Covers, Chapter by Chapter

The video is chaptered on the official upload, and the chapter names below are the ones on that upload. A few carry a note on what the section actually argues.

• 0:00 The Best-Kept Secret to Making Money
• 1:36 Why Life Experience Matters More Than Credentials. Gemelli's "life credentials" answer.
• 3:22 The Problem With “Success Gurus”
• 4:57 The Poverty Wave vs. the Wealth Wave. Trudeau's brainwave claim, presented as his.
• 6:35 Your Environment Is Changing Your Brain
• 8:06 Why Successful People Have Mentors
• 9:39 You Become Who You Surround Yourself With. The Sigel and Crane chain.
• 11:10 Why Failure and Challenges Are Necessary
• 12:58 Changing Your Life Through Your Mindset
• 14:28 The Difference Between a Champion and a Loser. The scratch on the break.
• 16:04 Your Mind Controls Your Performance
• 17:38 Your Body Will Yield to Your Mind. Patton and the Everest climber.
• 19:20 Dylan’s Descent Into the Drug Business
• 21:01 Making Money With No Exit Strategy
• 22:34 How Prison Changed Dylan
• 24:20 Taking Responsibility for Your Past
• 25:56 The Lost Art of Accountability
• 27:29 Why Speaking to Yourself Out Loud Matters
• 29:11 Looking in the Mirror and Owning Your Mistakes
• 30:59 Credibility, Criticism, and Controversy
• 32:37 Kevin’s First Training Business. The 150 names.
• 34:32 Results Matter More Than Degrees
• 36:12 Experience vs. Studies
• 37:46 Kevin’s Hip Injury and the Medical System
• 39:27 “You Need a Hip Replacement”
• 41:13 The Business Behind Medical Treatment
• 42:50 Why Chasing Money Makes You Miserable
• 44:29 Seek the Right Things First
• 46:19 The Lie That You Can Have Anything You Want. The Hill quote and the two words.
• 48:00 The Real Keys to Success

Three chapters carry the argument on their own: 1:36 for who to listen to, 14:28 for the mindset, and 46:19 for the quote. The three chapters from 37:46 to 42:50 are the men's personal accounts of their own medical experiences and opinions, and nothing in them is reproduced here.

Watch: You’ll NEVER Get Rich THIS Way

The full conversation runs just under 49 minutes and is chaptered, so you can go straight to the credentials exchange at 1:36, the pool story at 14:28, or the Napoleon Hill section at 46:19.

Gemelli hosts The Dylan Gemelli Podcast, where he tells the prison story at greater length. Trudeau's own book on the mechanics of belief is Your Wish Is Your Command.

Frequently Asked Questions

Who said "whatever the mind can conceive and believe, it can achieve"?

Napoleon Hill, the American author of Think and Grow Rich, published in 1937. His wording is usually given as "Whatever the mind of man can conceive and believe, it can achieve," and the shorter form on posters drops the "of man." The line is often paraphrased as conceive, believe, achieve.

What does "whatever the mind can conceive and believe, it can achieve" mean?

It means a goal you can picture in definite terms and hold with settled conviction is one you can reach, provided you plan for it and act. In Hill's book the sentence sits inside a system of definite aim, faith, organized planning and persistence. It is a statement about the order those things come in, not a promise that believing alone produces the result.

Did Napoleon Hill really write "within reason"?

Yes. The 1937 edition of Think and Grow Rich uses the phrase twice. In the Imagination chapter Hill writes that "man's only limitation, within reason, lies in his development and use of his imagination." In the closing chapter on fear he writes that F. W. Woolworth "knew that he could do anything, within reason, if he backed his plans with faith," in the paragraph that follows his line that Edison knew the mind could produce anything the mind could conceive and believe. Kevin Trudeau's claim is that the qualifier belongs with the famous line and that the success industry dropped it.

What does Kevin Trudeau call the biggest lie in success?

The line that says you can be, do and have anything and everything you want. Trudeau says the people selling that promise from stages are lying and, in his words, keeping people broke, because their audiences aim at things they have no path to, get disappointed and quit. His alternative is to dream big, then come back and name the next logical step you know you can hit.

What is the difference between believing and wishing, in Trudeau's telling?

Belief, as he reads Hill, means being confident with 100 percent certainty that you can get the thing. A wish is wanting it without that certainty. His test is the heavyweight boxing title: he says he always wanted it, cannot honestly believe he will win it, and therefore it fails the quote before the achieving is ever in question.

Who is Dylan Gemelli?

Dylan Gemelli is a human performance expert, as the video's description bills him, and the host of The Dylan Gemelli Podcast. In the video he describes modeling in Italy, running a cocaine business with no exit plan, receiving a 15-year sentence in Iowa, and being released on July 4, 2011, after which he rebuilt his life in Maui. He is Kevin Trudeau's guest for the full 48-minute conversation published on September 9, 2026.

Where does "you are the average of the five people you spend the most time with" come from?

Trudeau attributes an income version of it to Aristotle Onassis. The saying is more commonly credited to Jim Rohn. Quote Investigator traced the earliest close match to a 2005 book by Jack Canfield that credits Rohn, and describes the evidence for any single originator as weak.

What is the "next logical step" method?

Trudeau's sequence for using a big goal without living in a dream world. Dream big, then come back and ask what your next logical step is, pick a target you know you can hit, focus on that, and take it one step at a time. His phrase for it is "go as far as you can see, and when you get there, you'll see."

The Short Version

"Whatever the mind can conceive and believe, it can achieve" is Napoleon Hill's, and it is a statement about sequence: definite conception, real belief, then a plan and action. Kevin Trudeau's claim in his conversation with Dylan Gemelli is that the line has been travelling without the two words Hill put on it, within reason, and the 1937 text supports him on the substance. Hill wrote the qualifier twice, once in the paragraph right after his own conceive-and-believe sentence.

The parts of the conversation that hold up independently are worth separating from the parts that are the men's own. The Hill wording, the Wilde line, the Patton rule and the Matthew verse all check out. The wealth wave, the bone-conduction theory and the five-people attribution are Trudeau's claims, and they are presented here as his. The practical instruction survives either way: dream as big as you like, then name the next step you can actually take.

Start with the book the quote came from, in the site's review of Think and Grow Rich, and find the rest of his reading list and teaching at kevintrudeau.com.