You see, one thing is, I can live with doubt and uncertainty and not knowing. I have approximate answers and possible beliefs and different degrees of certainty about different things... It doesn't frighten me.
Richard P. FeynmanAll the time you're saying to yourself, 'I could do that, but I won't,'--which is just another way of saying that you can't.
Richard P. FeynmanI don't feel frightened by not knowing things, by being lost in the mysterious universe without any purpose - which is the way it really is, as far as I can tell. Possibly. It doesn't frighten me.
Richard P. FeynmanThe present situation in physics is as if we know chess, but we don't know one or two rules.
Richard P. Feynman