If I could prescribe only one remedy for all the ills of the modern world, I would prescribe silence.

The paradox is really the pathos of intellectual life and just as only great souls are exposed to passions it is only the great thinker who is exposed to what I call paradoxes, which are nothing else than grandiose thoughts in embryo.

Every mental act is composed of doubt and belief, but it is belief that is the positive, it is belief that sustains thought and holds the world together.

It seems to be my destiny to discourse on truth, insofar as I discover it, in such a way that all possible authority is simultaneously demolished.

This is the miracle of life: that each person who heeds him or herself knows what no scientist can ever know: who he or she is.

The conclusions of passion are the only reliable ones.

Truth is not introduced into the individual from without, but was within him all the time.