As soon as some of our young ladies cut their hair, put on blue spectacles, and called themselves nihilists, they became convinced at once that, having put on the spectacles, they immediately began to have their own “convictions.” As soon as a man feels in his heart just a drop of some sort of generally human and kindly feeling for something or other, he immediately becomes convinced that no one else feels as he does, that he is in the forefront of general development. As soon as a man takes some thought or other at its word or reads a little page of something without beginning or end, he believes at once that these are “his own thoughts” and were conceived in his own brain. The impudence of naïvety, if one may put it so, goes so far in such cases as to be astonishing; all this is incredible, but one meets with it constantly.
— Fyodor Dostoyevsky, The Idiot