The charm of the Platonic mode of thought ... consisted precisely in the resistance to the obvious evidence of the senses.

We are in the greatest danger of being run over when we have just gotten out of the way of a carriage.

To become the founder of a new religion one must be psychologically infallible in one's knowledge of a certain average type of souls who have not yet recognized that they belong together.

Under peaceful conditions a warlike man sets upon himself.

Every attainment, every step forward in knowledge, follows from courage, from hardness against oneself, from cleanliness in relation to oneself.

At the beginning of a marriage ask yourself whether this woman will be interesting to talk to from now until old age. Everything else in marriage is transitory: most of the time is spent in conversation.

It is not in how one soul approaches another but in how it withdraws that I knowr its affinity and solidarity with the other.