“Think before you speak is criticism's motto; speak before you think is creation's.”
“Music is the deepest of the arts and deep beneath the arts.”
“It isn't possible to love and to part. You can transmute love, ignore it, muddle it, but you can never pull it out of you.”
“Life is easy to chronicle, but bewildering to practice.”
“It does not do harm to the mystery to know a little more about it.”
“People say to me, 'Are you looking for the ultimate laws of physics?' No, I'm not. I'm just looking to find out more about the world.”
“If there is an exception to any rule, and if it can be proved by observation, that rule is wrong.”
“The 'paradox' is only a conflict between reality and your feeling of what reality 'ought to be.'”
“The test of all knowledge is experiment. Experiment is the sole judge of scientific 'truth'.”
“Scientific knowledge is a body of statements of varying degrees of certainty — some most unsure, some nearly sure, but none absolutely certain.”
“Do not keep saying to yourself, if you can possibly avoid it, 'But how can it be like that?' Nobody knows how it can be like that.”
“Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.”
“It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.”
“I can live with doubt, and uncertainty, and not knowing.”
“I don't like honors. I've already got the prize: the prize is the pleasure of finding the thing out.”
“Our freedom to doubt was born out of a struggle against authority in the early days of science.”
“Nature's imagination far surpasses our own.”
“If it disagrees with experiment, it's wrong. In that simple statement is the key to science.”
“Science is the belief in the ignorance of experts.”
“The problem is not to discover in oneself the truth of one's sex, but, rather, to use one's sexuality henceforth to arrive at a multiplicity of relationships.”