An exchange occurs between man and woman. Love and thought complete each other in the human pair, and something like an exchange of souls takes place, according to the divine plan.

I immersed myself in The Periodic Table gladly and gratefully. There is nothing superfluous here, everything this book contains is essential. It is wonderful pure, and beautifully translated...I was deeply impressed.

It's not up to me ... to make the world consistent.

Fidelity is for phonographs

We are funny creatures. We don't see the stars as they are, so why do we love them? They are not small gold objects, but endless fire.

I have, perhaps, a slave-like constitution which is too easily restrained by bonds; it then becomes rebellious and bursts out in a comic revolution.

People can lose their lives in libraries. They ought to be warned.