“I never knew who I was talking to. I was always worried about the physics. If the idea looked lousy, I said it looked lousy. If it looked good, I said it looked good. Simple proposition. I've always lived my life that way. It's nice, it's pleasant - if you can do it. I'm lucky in my life that I can do this.”
Richard Feynman

Surely You're Joking Mr. Feynman