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

Psychology is sometimes called a new science. This is quite wrong. Psychology is, perhaps, the oldest science, and, unfortunately, in its most essential features a forgotten science.

People live in sleep, do everything in sleep, and do not know they are asleep.

Possibly the most interesting first impression of my life came from the world of dreams.

There is something in us that keeps us where we find ourselves. I think this is the most awful thing of all.

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.

A religion contradicting science and a science contradicting religion are equally false.