Richard Feynman

“The main job of theoretical physics is to prove yourself wrong as soon as possible.”

“It doesn't matter how beautiful your theory is. It doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.”

“We can never be right, we can only prove we're wrong.”

“Science is what we have learned about how to keep from fooling ourselves.”

“Science is a way of trying not to fool yourself. The principle is that you must not fool yourself, and you are the easiest person to fool.”

“Odiaría morir dos veces, sería tan aburrido!.”

“Philosophy of science is about as useful to scientists as ornithology is to birds.”

“It doesn't matter how beautiful your theory is ... If it doesn't agree with experiment, it's wrong.”

“I would rather have questions that can't be answered than answers that can't be questioned.”