Conscious and unconscious experiences do not belong to different compartments of the mind; they form a continuous scale of gradations, of degrees of awareness.

Aggressiveness is not the main trouble with the human species, but rather an excess capacity for fanatical devotion.

Einstein's space is no closer to reality than Van Gogh's sky.

One may not regard the world as a sort of metaphysical brothel for emotions.

I believe that the evidence for telepathy is overwhelming and that it is a part of reality that is above science. Science allows us to glimpse [only] fragments of reality.

If conquerors be regarded as the engine-drivers of History, then the conquerors of thought are perhaps the pointsmen who, less conspicuous to the traveler's eye, determine the direction of the journey.

One should either write ruthlessly what one believes to be the truth, or else shut up.