A conviction akin to religious feeling of the rationality or intelligibility of the world lies behind all scientific work of a high order.

The State is made for Mankind, not mankind for the state

Mozart's music is so pure and beautiful that I see it as a reflection of the inner beauty of the universe.

The value of a man should be seen in what he gives and not in what he is able to receive.

A scientist is a mimosa when he himself has made a mistake, and a roaring lion when he discovers a mistake of others.

The greater the doubt, the greater the awakening

Feeling and longing are the motive forces behind all human endeavor and human creations.