"I only think one move ahead, but it is the right one
"
Selected Quotes of Richard Feynman
"The first principle is that you must not fool yourself - and you are the easiest to fool.
"
"Physics is like sex. Sure, it may give some practical results, but that's not why we do it.
"
"I think it's much more interesting to live not knowing than to have answers which might be wrong.
"
"If you think you understand quantum mechanics you don't understand quantum mechanics
"