To know what everyone knows is to know nothing.

Man has made use of his intelligence; he invented stupidity.

Man associates ideas not according to logic or verifiable exactitude, but according to his pleasure and interests. It is for this reason that most truths are nothing but prejudices.

Science is the only truth and it is the great lie. It knows nothing, and people think it knows everything. It is misrepresented. People think that science is electricity, automobilism, and dirigible balloons. It is something very different. It is life devouring itself. It is the sensibility transformed into intelligence. It is the need to know stifling the need to live. It is the genius of knowledge vivisecting the vital genius.

Autumn is as joyful and sweet as an untimely end.

Of all the sexual aberrations, perhaps the most peculiar is chastity.

The terrible thing about the quest for truth is that you find it.