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

Strange! I don't understand how it is that we can write mathematical expressions and calculate what the thing is going to do without being able to picture it.

So this piece of dirt waits four and a half billion years and evolves and changes, and now a strange creature stands here with instruments and talks to the strange creatures in the audience. What a wonderful world!

This is not yet a scientific age.

[Quantum mechanics] describes nature as absurd from the point of view of common sense. And yet it fully agrees with experiment. So I hope you can accept nature as She is - absurd.

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

The highest forms of understanding we can achieve are laughter and human compassion.