'But for an utmost end, in which the ancient philosophers placed felicity, and disputed much concerning the way thereto, there is no such thing in this world, nor way to it, more than to Utopia; for while we live, we have desires, and desire presupposeth a further end. Seeing all delight is appetite, and desire of something further, there can be no contentment but in proceeding, and therefore we are not to marvel, when we see that as men attain to more riches, honour, or other power, so their appetite continually groweth more and more; and when they are come to the utmost degree of some kind of power they pursue some other, as long as in any kind they think themselves behind any other. Of those, therefore, that have attained the highest degree of honour and riches, some have affected mastery, in some art, as Nero in music and poetry, Commodus in the art of a gladiator; and such as affect not some such thing, must find diversion and recreation of their thoughts in the contention either of play or business, and men justly complain as of a great grief that they know not what to do. Felicity, therefore, by which we mean continual delight, consists not in having prospered, but in prospering.' This account of human nature, true as it is, would be a mere romance, if physical sensibility were the only faculty essential to man, that is, if we were the slaves of voluptuous indolence. But our desires are kindled by their own heat, the will is urged on by a restless impulse, and without action, enjoyment becomes insipid. The passions of men are not in proportion only to their sensibility, or to the desirableness of the object, but to the violence and irritability of their tempers, and the obstacles to their success. Thus an object to which we were almost indifferent while we thought it in our power, often excites the most ardent pursuit or the most painful regret, as soon as it is placed out of our reach. How eloquently is the contradiction between our desires and our success described in _Don Quixote_, where it is said of the lover, that 'he courted a statue, hunted the wind, cried aloud to the desert!'