10. “The innovator has for enemies all those who have done well under the old conditions.” –Niccolo Machiavelli
9. “Life is what happens to you while you're making other plans.” –John Lennon
8. “He who hesitates is last.” –Mae West
7. “It is better to know some of the questions than all of the answers.” –James Thurber
6. “I was gratified to be able to answer promptly. I said I don't know.” –Mark Twain
5. “Hard work never killed anybody yet. But why take a chance?” –Charlie McCarthy
4. “Prediction is extremely difficult. Especially about the future.” –Niels Bohr
3. “An economist's guess is liable to be as good as anybody else's.” –Will Rogers
2. “Some say the glass is half full. Some say it's half empty. I say the glass is too big.” –George Carlin
1. “Begin at the beginning and go on till you come to the end; then stop.” –Lewis Carroll
(This list courtesy of Gilbert!, The Magazine of G.K. Chesterton.)
