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