Our laughter is always the laughter of a group.

It is the very essence of intelligence to coordinate means with a view to a remote end, and to undertake what it does not feel absolutely sure of carrying out.

The major task of the twentieth century will be to explore the unconscious, to investigate the subsoil of the mind.

Life does not proceed by the association and addition of elements, but by dissociation and division.

Knowledge, in so far as it is directed to practical matters, has only to enumerate the principal possible attitudes of the thing towards us, as well as our best possible attitude towards it. Therein lies the ordinary function of ready-made concepts, those stations with which we mark out the path of becoming. But to seek to penetrate with them into the inmost nature of things, is to apply to the mobility of the real a method created in order to give stationary points of observation on it.

An absolute can only be given in an intuition, while all the rest has to do with analysis.

ACT as men of thought; THINK as men of action.