Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

Einstein was attending a music salon in Germany before the second world war, with the violinist S. Suzuki. Two Japanese women played a German piece of music and a woman in the audience exclaimed: "How wonderful! It sounds so German!" Einstein responded: "Madam, people are all the same."

It takes a touch of genius - and a lot of courage to move in the opposite direction.

If God has created the world, his primary worry was certainly not to make its understanding easy for us

I have always loved solitude, a trait which tends to increase with age.

I was very pleased with your kind letter. Until now I never dreamed of being something like a hero. But since you've given me the nomination I feel that I am one.

For science can only ascertain what is, but not what should be, and outside of its domain value judgments of all kinds remain necessary. Religion, on the other hand, deals only with evaluations of human thought and action: it cannot justifiably speak of facts and relationships between facts.