Everything great in the world comes from neurotics. They alone have founded our religions and composed our masterpieces.

People who are not in love fail to understand how an intelligent man can suffer because of a very ordinary woman. This is like being surprised that anyone should be stricken with cholera because of a creature so insignificant as the common bacillus.

Every kiss provokes another. Oh, in those earliest days of love how naturally the kisses spring to life! So closely, in their profusion, do they crowd together that lovers would find it as hard to count the kisses exchanged in an hour as to count the flowers in a meadow in May.

But sometimes the future is latent in us without our knowing it, and our supposedly lying words foreshadow an imminent reality.

In summoning even the wisest of physicians to our aid, it is probably that he is relying upon a scientific "truth", the error of which will become obvious in just a few years' time.

A powerful idea communicates some of its strength to him who challenges it.

We passionately long that there may be another life in which we shall be similar to what we are here below. But we do not pause to reflect that, even without waiting for that other life, in this life, after a few years we are unfaithful to what we have been, to what we wished to remain immortally.