Do not grow old, no matter how long you live.

Nationalism is the measels of mankind.

We cannot despair about mankind knowing that Mozart was a man.

Future medicine will be the medicine of frequencies.

One strength of the communist system of the East is that it has some of the character of a religion and inspires the emotions of a religion.

The restriction of knowledge to an elite group destroys the spirit of the society and leads to its intellectual impoverishment.

Lasting harmony with a woman (was) an undertaking in which I twice failed rather disgracefully.