The bite of conscience, like the bite of a dog into a stone, is a stupidity.

We must be physicists in order to be creative since so far codes of values and ideals have been constructed in ignorance of physics or even in contradiction to physics.

I love him who wants to create over and beyond himself and thus perishes.

There are people who are so presumptuous that they know no other way to praise a greatness that they publicly admire than by representing it as a preliminary stage and bridge leading to themselves.

The coward does not know what it means to be alone: an enemy is always standing behind his chair.

Some mothers need happy children; others need unhappy ones-otherwise they cannot prove their maternal virtues.

"God", "the immortality of the soul", "salvation", "the beyond"-even as a child I had no time for such notions, I do not waste any time upon them-maybe I was never childish enough for that?