We’ve gathered some famous quotes and reflections on professional success, business, and the corporate world in general—from professionals and great thinkers.

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Reflections on Business and Professional Success

• “Rule number one: never lose money. Rule number two: never forget rule number one.” — Warren Buffett, Investor
• “It’s fine to celebrate success, but it is more important to heed the lessons of failure.” — Bill Gates, Co-founder of Microsoft
• “As I grow older, I pay less attention to what people say. I just watch what they do.” — Andrew Carnegie, Businessman
• “Know your business and industry better than anyone else. Love what you do or don’t do it.” — Mark Cuban, Entrepreneur
• “The ignorant assert, the wise doubt and reflect.” — Aristotle, Philosopher

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Great Ideas on Leadership

• “If people believe in themselves, it’s amazing what they can accomplish.” — Sam Walton, Founder of Wal-Mart
• “If you have to tell people you are, you aren’t.” — Margaret Thatcher, Prime Minister of the United Kingdom
• “A leader is best when people barely know he exists. When his work is done, his aim fulfilled, they will say: we did it ourselves.” — Lao Tzu, Philosopher
• “The key to successful leadership is influence, not authority.” — Ken Blanchard, Trainer
• “Keep your fears to yourself, but share your courage with others.” — Robert Louis Stevenson, Writer

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Quotes on Productivity as a Driver of Professional Success

• “Part of being a winner is knowing when enough is enough. Sometimes you have to give up the fight, walk away, and move on to something more productive.” — Donald Trump, Businessman
• “Stop selling and start helping.” — Zig Ziglar, Speaker
• “The most effective way to do it, is to do it.” — Amelia Earhart, Aviator
• “The way to get started is to quit talking and begin doing.” — Walt Disney, Film Producer
• “The more I practice, the luckier I get.” — Greg Norman, Golfer

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Historic Quotes on Entrepreneurship

• “No action is too small when it comes to changing the world.” — Cyril Ramaphosa, Politician
• “The biggest risk is not taking any risk. In a world that’s changing really quickly, the only strategy guaranteed to fail is not taking risks.” — Mark Zuckerberg, Founder of Facebook
• “In many failures lie many opportunities.” — Clive Palmer, Businessman
• “Don’t let the noise of others’ opinions drown out your own inner voice.” — Steve Jobs, Co-founder of Apple
• “A lot of people have ideas, but only a few decide to do something about them today. Not tomorrow. Not next week. But today.” — Nolan Bushnell, Founder of Atari

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Keys to Motivation

• “Money doesn’t make people happy. People make people happy.” — Steve Wynn, Composer
• “Whether you think you can, or you think you can’t—you’re right.” — Henry Ford, Businessman
• “If people are not laughing at your goals, your goals are too small.” — Azim Premji, Businessman
• “Only those who are asleep make no mistakes.” — Ingvar Kamprad, Founder of IKEA
• “Success is the ability to go from one failure to another with no loss of enthusiasm.” — Winston Churchill, Politician

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Thoughts on Business Management

• “You have to pretend you’re 100% sure. You have to take action, and you can’t hedge your bets. Otherwise, you’re condemning your efforts to failure.” — Andy Grove, Scientist
• “Work honestly and build, build, build.” — Jack Simplot, Businessman
• “Everything should be made as simple as possible, but no simpler.” — Albert Einstein, Scientist
• “The miracle is this: the more we share, the more we have.” — Leonard Nimoy, Actor
• “The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.” — Max DePree, Author