what Freud might have described as a neurosis -- as a rejection of what Freud called the 'reality principle'. By the way, I am not a Freudian, and I even think that Freud's description of the world of the human mind may indeed be regarded as largely due to a convention or invention -- a very influence convention indeed.
Karl Popper on Nature/Nurture Debate 2
The World of Parmenides, by Karl Popper, page 124:
I like chapter 2 of that book, about Xenophanes.