Lesson 1: Your Beliefs Affect Your Behavior and Results

Belief and Certainty Drive Action

Belief and certainty are powerful drivers of action. When individuals strongly believe in an outcome or possibility, their actions naturally align with that conviction.

Certainty reduces hesitation, eliminates doubt, and sharpens focus, making bold, consistent action feel not only possible but necessary. This is why confident leaders and performers often seem unstoppable, they act as if success is inevitable, and this belief fuels relentless effort.

Positive feedback then amplifies this cycle. When action yields even small wins, it reinforces belief and builds confidence, creating a virtuous loop of belief → action → result → stronger belief. Over time, this momentum compounds. Conversely, doubt paralyzes. Without belief, action is timid or inconsistent, leading to poor results and a downward spiral. Cultivating certainty—through mindset, preparation, or evidence—can therefore be the catalyst for sustained, exponential progress. Confidence isn’t just a feeling; it’s the engine of meaningful action.

The Magic of Believing 

“The Magic of Believing” is a motivational classic that explores the transformative power of belief. Claude Bristol argues that a person’s deeply held beliefs shape their reality, influencing success or failure. Drawing from psychology, mysticism, and anecdotal evidence, he explains how the subconscious mind responds to suggestion and faith, enabling people to achieve goals they previously thought impossible. Bristol introduces methods like visualization, positive affirmations, and repeated suggestion to implant strong beliefs in the subconscious, thus harnessing its power. He emphasizes the importance of unwavering confidence, persistence, and a vivid mental image of success. The book blends practical self-help strategies with an almost spiritual conviction in the “miracle of belief,” inspiring readers to break free from self-doubt and realize their full potential. Ultimately, Bristol insists that belief is not merely wishful thinking but a practical force that, when properly applied, can bring about astonishing personal and professional achievements.

Bonus Lessons

The Book that Changed Tony Robbins’ Life

Do you remember the book that helped you early on?

For me, one of my pivotal experiences was when I was 17 years old. I had a number of different fathers in the house, about four, and my mother kicked the last one out. Then she thought I was on his side, so she kicked me out as well. He went back out east to Chicago, and I went to a bookstore. I was so depressed and I knew I had to feed my mind. I stumbled upon The Magic of Believing by Claude Bristol. It is all about conditioning your mind and turning your fears into strengths. Once I had read that, I lived that book.

What about that book did you connect with?

I really loved the message the book held, that what you put out there and what you believe could actually come to be; how true beliefs are actually based in a feeling of certainty. Not only that, but you could create that feeling of certainty. There are a lot of things said about affirmations, but this is really about incantations. This is not you thinking to yourself, this is you projecting out loud and into the universe. If you do it right, you are getting the message deep into your unconscious mind and changing your conditioning.

How did you change your own mindset?

Because of all this I was very depressed at the time, and in the book they instructed us to put our core statements on the mirror, so that you could see yourself and your message together every morning. I was living in someone’s laundry room at the time, in this tiny house, and I wrote in soap on the mirror, “Only a loser is depressed.” Because I was feeling depressed every day and I knew I wasn’t a loser.

What did you feel once you started adopting those messages?

I really stopped feeling sorry for myself. I stopped blaming my mother for everything that was wrong in my life. She was addicted to alcohol and prescription drugs. She also was abusive and would smash my head into a wall or fill my mouth with liquid soap until I threw up because she thought I was acting out of line. I never talked about her while she was alive, and I still love her to this day. The fact is if my mother had been the mother I hoped for, I wouldn’t be the man I am proud to be today. All of this is inside me somewhere, driving me to visit 14 countries in a year and work 50 hours on a weekend. I suffered so much, I didn’t want anyone else to suffer and I was obsessed with finding answers. Now I am obsessed with having the answers and sharing those answers.