The problem of creating something new, but which is consistent with everything which has been seen before, is one of extreme difficulty.

It is the fact that the electrons cannot all get on top of each other that makes tables and everything else solid.

When things are going well, something will go wrong. / When things just can't get any worse, they will. / Anytime things appear to be going better, you have overlooked something.

Words can be meaningless. If they are used in such a way that no sharp conclusions can be drawn.

If I say [electrons] behave like particles I give the wrong impression; also if I say they behave like waves. They behave in their own inimitable way, which technically could be called a quantum mechanical way. They behave in a way that is like nothing that you have seen before.

All 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.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.