Middle Quotes (page 9)
The test of an adventure is that when you're in the middle of it, you say to yourself "Oh now I've got myself into an awful mess; I wish I were sitting quietly at home. And the sign that something's wrong with you is when you sit quietly at home wishing you were out having lots of adventure.
Thornton Wilder
It was thought in the Middle Ages that people simply make many observations, and the observations themselves suggest the laws. But it does not work that way. It takes much more imagination than that. So the next thing we have to talk about is where the new ideas come from. Actually, it does not make any difference, as long as they come.
Richard P. Feynman