“I shall have to test the theory of my father Parmenides, and contend forcibly that after a fashion not-being is and on the other hand in a sense being is not… For unless these statements are either disproved or accepted, no one who speaks about false words, or false opinion -whether images or likenesses or imitations or appearances- about the arts which have to do with them, can ever help being forced to contradict himself and make himself ridiculous.”

Source: Wikiquote