For those who want some proof that physicists are human, the proof is in the idiocy of all the different units which they use for measuring energy.

I find that teaching and the students keep life going, and I would never accept any position in which somebody has invented a happy situation for me where I don't have to teach. Never.

All mass is interaction.

Tell your son to stop trying to fill your head with science - for to fill your heart with love is enough!

When a Caltech student asked the eminent cosmologist Michael Turner what his "bias" was in favoring one or another particle as a likely candidate to compromise dark matter in the universe, Feynmann snapped, "Why do you want to know his bias? Form your own bias!"

My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous reason and you'd just spoil it to know it.

The basis of action on love, the brotherhood of all men, the value of the individual... the humility of the spirit.