I shall not commit the fashionable stupidity of regarding everything I cannot explain as a fraud.—address to the Society for Psychical Research in England

As a matter of fact, primitive man is no more logical or illogical than we are. His presuppositions are not the same as ours, that is what distinguishes him from us.

My thoughts are not my self but exactly like the things of the world, alive and dead. Just as I am not damaged through living in a partly chaotic world, so too I am not damaged if I live in my partly chaotic thought world. Thoughts are natural events that you do not possess, and whose meaning you only imperfectly recognize.

Thoughts are natural events that you do not possess, and whose meaning you only imperfectly recognize.

Na hranicích logiky sice končí věda, ne však příroda, která vzkvétá i tam, kam ještě žádná teorie nepronikla.