Philosophy is based on speculation, on logic, on thought, on the synthesis of what we know and on the analysis of what we do not know. Philosophy must include within its confines the whole content of science, religion and art.

If you want to remember yourself, the best thing is not to think about yourself. As long as you think about yourself, you will not remember yourself.

There is no tyranny more ferocious than the tyranny of morality. Everything is sacrificed to it.

A symbol may serve to transfer our intuitions and to suggest new ones only so long as its meaning is not defined.

Attaining consciousness is connected with the gradual liberation from mechanicalness, for man is fully and completely under mechanical laws.

Most people can accept the truth only in the form of a lie.

Truths that become old become decrepit and unreliable; sometimes they may be kept going artificially for a certain time, but there is no life in them.