Homo sapiens, the only creature endowed with reason, is also the only creature to pin its existence on things unreasonable.
The major task of the twentieth century will be to explore the unconscious, to investigate the subsoil of the mind.
I cannot escape the objection that there is no state of mind, however simple, that does not change every moment.
An absolute can only be given in an intuition, while all the rest has to do with analysis.
The only cure for vanity is laughter, and the only fault that is laughable is vanity.
Life does not proceed by the association and addition of elements, but by dissociation and division.
Genius is that which forces the inertia of humanity to learn.
Wherever anything lives, there is, open somewhere, a register in which time is being inscribed.
The motive power of democracy is love.
Sex appeal is the keynote of our civilization.
And I also see how this body influences external images it gives back movement to them.
I see plainly how external images influence the image that I call my body they transmit movement to it.
Our laughter is always the laughter of a group.
It seems that laughter needs an echo.
In laughter we always find an unavowed intention to humiliate and consequently to correct our neighbour.
In reality, the past is preserved by itself automatically.
There is nothing in philosophy which could not be said in everyday language.
