The idle man does not know what it is to enjoy rest.

Those who believe that politics and religion do not mix, understand neither.

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.

It is my fate to be considered an authority, since I spent my youth rebelling against it.

Science is the century-old endeavor to bring together by means of systematic thought the perceptible phenomena of this world into as thorough-going an association as possible.

At the same time, as social beings, we are moved in the relations with our fellow beings by such feelings as sympathy, pride, hate, need for power, pity, and so on.

Everyone should be respected as an individual, but no one idolized.