One feels inclined to say that the intention that man should be 'happy' is not included in the plan of Creation.' . . . We are so made that we can derive intense enjoyment only from a contrast and very little from a state of things.

When one does not have what one wants, one must want what one has.

Time spent with cats is never wasted.

Writing was in its origin, the voice of an absent person.

My love is something valuable to me which I ought not to throw away without reflection.

The behavior of a human being in sexual matters is often a prototype for the whole of his other modes of reaction in life.

The most complicated achievements of thought are possible without the assistance of consciousness.