[18] Now, about the former kind, scarcely any one ever raises any question; for the chances of fortune which happen to men are infinite in number, and it often happens that men of the highest virtue have fallen into unexpected misfortunes, and so have lost the freedom which belonged to them through their birth. But there is room for inquiry about those manners which neither desires, nor fears, nor pleasures, nor pains, have ever brought under the yoke, as if they had come forth out of confinement, and as if the chains by which they had been bound were now loosened.