Man is a moral being, only because he lives in society. Let all social life disappear and morality will disappear with it.

Each victim of suicide gives his act a personal stamp which expresses his temperament, the special conditions in which he is involved, and which, consequently, cannot be explained by the social and general causes of the phenomenon.

Our whole social environment seems to us to be filled with forces which really exist only in our own minds.

A monomaniac is a sick person whose mentality is perfectly healthy in all respects but one; he has a single flaw, clearly localized. At times, for example, he has an unreasonable and absurd desire to drink or steal or use abusive language; but all his other acts and all his other thoughts are strictly correct.

Man is a moral being, only because he lives in society. Let all social life disappear and morality will disappear with it.

A society whose members are united by the fact that they think in the same way in regard to the sacred world and its relations with the profane world, and by the fact that they translate these common ideas into common practices, is what is called a Church. In all history, we do not find a single religion without a Church.

I can be free only to the extent that others are forbidden to profit from their physical, economic, or other superiority to the detriment of my liberty.