The Magic of Thinking Big Summary: David J. Schwartz’s Classic on Achieving More

Welcome, fellow bookworm! Why do some people with average talent achieve extraordinary things, while brilliant people achieve so little? David J. Schwartz’s answer changed millions of lives: it’s not intelligence or luck — it’s the size of your thinking. This summary of The Magic of Thinking Big by David J. Schwartz covers the complete system: how to cure “excusitis,” defeat disbelief, think creatively, and use action to conquer fear.

Published in 1959, The Magic of Thinking Big has sold millions of copies and remains one of the most practical success books ever written — less mystical than Hill, more actionable than Peale. If you’ve ever felt your ambitions were “too big” for someone like you, this book — and this summary — is your permission slip. Let’s think big.

Book and Author Details

Author: David J. Schwartz (1927–1987) was a professor of marketing at Georgia State University and a renowned motivational speaker who worked with companies across America. Unlike many success authors, Schwartz was an academic who tested his ideas in research and corporate consulting — his book blends motivational principles with practical psychology. He is remembered as one of the clearest, most down-to-earth voices in the success literature.

Publication: 1959, Prentice-Hall (originally The Magic of Thinking Big; later editions by various publishers). A steady bestseller for over six decades, with millions sold worldwide and a devoted following among salespeople, entrepreneurs, and executives.

Genre & Audience: Self-help / success psychology / personal development. The most practical of the classic success books — light on metaphysics, heavy on technique. Written for strivers at every level: students, salespeople, managers, entrepreneurs. Especially powerful for anyone held back by self-doubt rather than by circumstances.

Table of Contents

• One Minute Book Summary
• The Book in Three Sentences
• The Magic of Thinking Big — Full Summary
• Characters
• 6 Main Key Lessons and Concepts
• Quotes
• Conclusion

ONE MINUTE BOOK SUMMARY

The Magic of Thinking Big argues that success is determined less by intelligence than by the size of one’s thinking: big thinkers set big goals, expect big results, and act boldly, while small thinkers limit themselves with excuses. Schwartz provides concrete tools: cure “excusitis” (the disease of making excuses about health, intelligence, age, and luck); defeat disbelief by thinking success instead of failure; build confidence by taking action (action cures fear); think creatively by believing things can be done; manage your environment by choosing positive associations; make your attitudes your allies; think right toward people; get the action habit; turn defeat into victory; use goals to grow; and think like a leader. Through case studies of ordinary people who achieved extraordinary results by upgrading their thinking, Schwartz shows that thinking big is a learnable discipline — and that the only real limits are the ones we accept.

The Book In Three Sentences

Success comes not from superior intelligence but from thinking big — setting large goals, believing in them, and acting on them — while failure comes from “excusitis,” the habit of rationalizing small results. Schwartz offers a practical toolkit: cure excuses, defeat disbelief, use action to destroy fear, think creatively, manage your environment, and develop the action habit. Think big, act big, and your results will follow the size of your thinking.

The Magic of Thinking Big Book Summary

Part 1: Believe You Can Succeed — Curing Excusitis and Disbelief

Schwartz opens with his foundational claim, backed by his research: success is determined by thinking, not IQ. He introduces the book’s most famous concept — “excusitis,” the failure disease — with its four common strains: health excusitis (“I’m not well enough”), intelligence excusitis (“I’m not smart enough”), age excusitis (“I’m too old/young”), and luck excusitis (“others are just lucky”). For each, Schwartz prescribes the cure: refuse to accept the excuse, focus on what you can do, and note that successful people in every field overcame the same handicaps.

The second chapter attacks disbelief — the negative power of thinking “it can’t be done.” Schwartz’s antidote is a three-step program: think doubt out of existence (practice disbelieving your doubts), think success not failure (when a problem comes, think “it can be done” before analyzing how), and use the “how” question to defeat discouragement. He shows how belief literally changes perception: the mind set to find ways finds them; the mind set to find obstacles finds those instead.

Part 2: Build Confidence — Action Cures Fear

Schwartz’s confidence formula is the book’s most actionable teaching: “Action cures fear.” Indecision and postponement fertilize fear; action starves it. He gives the famous technique: to conquer a specific fear, do the feared thing — make the call, give the speech, ask the question. Confidence, he argues, is not a prerequisite for action but its product: act confidently and confidence follows.

He adds supporting practices: deposit only positive thoughts in your memory bank (dwell on successes, forget failures), put people in proper perspective (others aren’t giants — “everyone is human”), practice speaking up (each time you speak, you gain confidence), and smile big (it signals confidence to others and to yourself). The case studies — the timid salesman who became a star by acting confident — make the abstract concrete: confidence is behavior before it’s feeling.

Part 3: Think Creatively — How to Think and Dream Creatively

Schwartz demystifies creativity: it’s not genius but a method. His program: believe it can be done (eliminate “impossible” from your thinking), don’t let tradition paralyze you (be receptive to new ideas — “be an experimental person”), ask “how can I do better?” daily, ask “how can I do more?” (capacity is a state of mind), practice asking and listening (get others’ views — “stimulate your mind with others’ minds”), and stretch your mind with big ideas.

He introduces powerful tools: the “department store” technique for the mind (manage your thinking like inventory — stock what sells, discard what doesn’t), and the practice of writing down ideas (thinking on paper sharpens thinking). His examples — the executive who doubled sales by asking “how can we do more?” — show creativity as disciplined questioning rather than inspiration. The message: creative thinking is available to everyone who practices it.

Part 4: Manage Your Environment — Attitudes and People

“You are the product of your environment” — so choose it. Schwartz urges readers to go first-class in everything (surroundings signal self-worth), avoid “thought poison” (gossip, negative people), and seek counsel from successful people. The environment chapter is really about input management: what you consume — conversations, media, associations — shapes what you become.

Two chapters then address the inner and outer game of people: make your attitudes your allies (grow the “I’m activated,” “You are important,” and “Service first” attitudes; enthusiasm as a learnable skill), and think right toward people (the six ways to win friends: learn to remember names, be a comfortable person, acquire the technique of “relaxed” listening, don’t hog the conversation, and — most importantly — make people feel important). Schwartz’s people-skills teaching rivals Carnegie’s in practicality.

Part 5: The Action Habit — Goals, Defeat, and Leadership

The closing chapters form the execution system. Get the action habit: be an activationist not a passivationist — “do it now,” don’t wait for perfect conditions, take initiative, learn that action is the mind’s best tranquilizer. Turn defeat into victory: study setbacks to “pave the way to success,” have the courage to be your own constructive critic, stop blaming luck, and blend persistence with experimentation.

Use goals to help you grow: get a clear fix on where you want to go, make a 30-day improvement plan, invest in yourself. And finally, think like a leader: trade minds with the people you want to influence, apply the “be human” rule, think progress/believe in progress/push for progress, and take time out to confer with yourself. The book ends where it began: the size of your thinking determines the size of your life — so think big, and act accordingly.

Characters

1. David J. Schwartz — The author-professor; researcher, consultant, and guide to bigger thinking.
2. The Excusitis Sufferers — Composite case studies; every reader recognizes themselves.
3. The Timid Salesman — Cured by acting confident; proof that behavior precedes feeling.
4. The “How Can We Do More?” Executive — Doubled results through creative questioning.
5. The Activationists — Schwartz’s heroes; people who act now rather than waiting.
6. The Passivationists — The cautionary figures; waiting for perfect conditions that never come.
7. The Big Thinkers — Case studies of ordinary people with extraordinary results.
8. The Leader — Schwartz’s ideal; thinks progress, acts human, confers with himself.

6 Main Key Lessons and Concepts

1. Core Message: The size of your thinking determines the size of your achievements. Not IQ, not luck, not background — but whether you think big enough to attempt big things. Small thinking is a habit; big thinking is a learnable discipline.

2. Purpose: Schwartz wrote the most practical of the success classics — a field manual, not a philosophy. For students of psychology: it’s applied cognitive-behavioral principles decades before the term; for writers: study how Schwartz makes every abstraction actionable — each chapter ends in things to do.