Jobs. Gates. Buffett. Branson.

Four great minds. Completely different perspectives and styles of leadership. They learned from each other, inspired one another, taught us.

Here are 50 quotes of wisdom that all of us can learn from--and they're all short enough to tweet.

Steve Jobs

1. Innovation is saying no to a thousand things.

2. A lot of times, people don't know what they want until you show it to them.

3. Quality is more important than quantity. One home run is much better than two doubles.

4. Half of what separates successful entrepreneurs from the non-successful ones is pure perseverance.

5. Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

6. Innovation distinguishes between a leader and a follower.

7. My favorite things in life don't cost any money. It's really clear that the most precious resource we all have is time.

8. Design is not just what it looks and feels like. Design is how it works.

9. I'm the only person I know that's lost a quarter of a billion dollars in one year... It's very character-building.

10. That's been one of my mantras--focus and simplicity.

11. Your time is limited, so don't waste it living someone else's life.

Bill Gates

12. Success is a lousy teacher. It seduces smart people into thinking they can't lose.

13. It's fine to celebrate success but it is more important to heed the lessons of failure.

14. We all need people who will give us feedback. That's how we improve.

15. Your most unhappy customers are your greatest source of learning.

16. People always fear change.

17. Most people overestimate what they can do in one year and underestimate what they can do in ten years.

18. Don't compare yourself with anyone in this world. If you do, you are insulting yourself.

19. If you can't make it good, at least make it look good.

20. Our success has really been based on partnerships from the very beginning.

21. To win big, you sometimes have to take big risks.

22. "I don't know" has become "I don't know yet."

Warren Buffett

23. Someone is sitting in the shade today because someone planted a tree a long time ago.

24. Rule No. 1: Never lose money. Rule No. 2: Never forget rule No. 1.

25. It takes 20 years to build a reputation and five minutes to ruin it.

26. Chains of habit are too light to be felt until they are too heavy to be broken.

27. Price is what you pay. Value is what you get.

28. A public-opinion poll is no substitute for thought.

29. The only way to get love is to be lovable.

30. Predicting rain doesn't count. Building arks does.

31. The most important thing to do if you find yourself in a hole is to stop digging.

32. Some things just take time. You can't produce a baby in one month by getting nine women pregnant.

33. You never know who's swimming naked until the tide goes out.

Richard Branson

34. You don't learn to walk by following rules. You learn by doing, and by falling over.

35. A business is simply an idea to make other people's lives better.

36. I've seen life as one long learning process.

37. A business has to be involving, it has to be fun, and it has to exercise your creative instincts.

38. Business opportunities are like buses. There's always another one coming.

39. I believe in benevolent dictatorship, provided I am the dictator.

40. The best way of learning about anything is by doing.

41. Don't think "what's the cheapest way to do it" or "what's the fastest way to do it"...think "what's the most amazing way to do it?"

42. Engage your emotions at work. Your instincts and emotions are there to help you.

43. Entrepreneurship is about turning what excites you in life into capital, so that you can do more of it and move forward with it.

44. You've got to question leaders on occasion.

45. Listen. Take the best. Leave the rest.

46. The time to go into a new business is when it's badly run by others.

47. If you look for the best in your employees, they'll flourish.

48. I don't think of work as work and play as play. It's all living.

49. My general attitude to life is to enjoy every minute of every day.

50. Do not be embarrassed by your failures. Learn from them and start again.