Never regard study as a duty, but as the enviable opportunity to learn

When the Special Theory of Relativity began to germinate in me, I was visited by all sorts of nervous conflicts... I used to go away for weeks in a state of confusion.

The ideals which have always shone before me and filled me with the joy of living are goodness, beauty, and truth.

Genius abhors consensus because when consensus is reached, thinking stops. Stop nodding your head.

Although words exist for the most part for the transmission of ideas, there are some which produce such violent disturbance in our feelings that the role they play in the transmission of ideas is lost in the background.

The idea of a personal God is an anthropological concept which I am unable to take seriously.

I know that it is a hopeless undertaking to debate about fundamental value judgements. For instance, if someone approves, as a goal, the extirpation of the human race from the earth, one cannot refute such a viewpoint on rational grounds. But if there is agreement on certain goals and values, one can argue rationally about the means by which these objectives may be obtained.