Even one well-made observation will be enough in many cases, just as one well-constructed experiment often suffices for the establishment of a law.

The term suicide is applied to all cases of death resulting directly or indirectly from a positive or negative act of the victim himself, which he knows will produce this result

Man could not live if he were entirely impervious to sadness. Many sorrows can be endured only by being embraced, and the pleasure taken in them naturally has a somewhat melancholy character.

While the State becomes inflated and hypertrophied in order to obtain a firm enough grip upon individuals, but without succeeding, the latter, without mutual relationships, tumble over one another like so many liquid molecules, encountering no central energy to retain, fix and organize them.

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

It is too great comfort which turns a man against himself. Life is most readily renounced at the time and among the classes where it is least harsh.

The totality of beliefs and sentiments common to the average members of a society forms a determinate system with a life of its own. It can be termed the collective or creative consciousness.