1. It’s not that I’m so smart, it’s just that I stay with problems longer.
—Albert Einstein
2. Eighty percent of success is showing up.
—Woody Allen
3. I respect faith, but doubt is what gets you an education.
—Wilson Mizner
4. The greatest obstacle to discovery is not ignorance; it is the illusion of knowledge.
—Daniel J. Boorstin
5. The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
—William Arthur Ward
6. If you don’t make mistakes, you’re not working on hard enough problems. And that’s a big mistake.
—Frank Wilczek
7. You can never get enough of what you don’t really need.
—Eric Hoffer
8. Insanity: doing the same thing over and over again and expecting different results.
—Albert Einstein
9. Do not confuse motion and progress. A rocking horse keeps moving but does not make any progress.
—Alfred A. Montapert
10. I don’t know the key to success, but the key to failure is trying to please everybody.
—Bill Cosby
11. Tomorrow is often the busiest day of the week.
—Spanish Proverb
12. Be yourself; everyone else is already taken.
—Oscar Wilde
13. There is a great difference between worry and concern. A worried person sees a problem, and a concerned person solves a problem.
—Harold Stephens
14. It is easier to fight for one’s principles than to live up to them.
—Alfred Adler
15. I hear: I forget / I see: I remember / I do: I understand
—Chinese Proverb
16. Discipline is just choosing between what you want now and what you want most.
—Unknown Author
17. The very best thing you can do for the whole world is to make the most of yourself.
—Wallace Wattles
18. Good judgment comes from experience, and experience comes from bad judgment.
—Barry LePatner
19. When I do good, I feel good; when I do bad, I feel bad, and that is my religion.
—Abraham Lincoln
20. Success consists of going from failure to failure without loss of enthusiasm.
—Winston Churchill
