"Moreover, if cause were nonexistent everything would have been produced by everything and at random. Horses, for instance might be born, perchance, of flies, and elephants of ants; and there would have been severe rains and snow in Egyptian Thebes, while the southern districts would have had no rain, unless there had been a cause which makes the southern parts stormy, the eastern dry. Also, he who assertes that there is no Cause is refuted; for if he says that he makes this statement absolutely and without any cause, he is positing Cause while wishing to abolish it, since he offers us a cause to prove the non-existence of Cause."
Sextus Empiricus. Um 200. Zit. in Koch 1994, S. 116.