Coming finally to Epicurus' theory of Ethics, we find a general resemblance to the doctrine of Democritus and Aristippus. The end of life is pleasure or the absence of pain. He differs, however, from the Cyrenaics in maintaining that not the pleasure of the moment is the end, but pleasure throughout the whole of life, and that therefore we ought in our conduct to have regard to the future. Further he denies that pleasure exists only in activity, it exists equally in rest and quiet; in short, he places more emphasis in his definition on the absence of pain or disturbance, than on the presence of positive pleasure. And thirdly, while the Cyrenaics maintained that bodily pleasures and pains were the keenest, Epicurus claimed these characteristics for the pleasures of the mind, which intensified the present feeling by anticipations of the future and recollections of the past. And thus the wise man might be happy, even on the rack. Better indeed was it to be unlucky and wise, than lucky and foolish. In a similar temper Epicurus on his death-bed wrote thus to a friend: "In the enjoyment of blessedness and peace, on this the last day of my life I write this letter to you. Strangury has supervened, and the extremest agony of internal {223} pains, yet resisting these has been my joy of soul, as I recalled the thoughts which I have had in the past." [381] We must note, however, that while mental pleasures counted for much with the Epicureans, these mental pleasures consisted not in thought for thought's sake in any form; they had nothing to do with contemplation. They were essentially connected with bodily experiences; they were the memory of past, the anticipation of future, bodily pleasures. For it is to be remembered that thoughts were with Epicurus only converted sensations, and sensations were bodily processes. Thus every joy of the mind was conditioned by a bodily experience preceding it. Or as Metrodorus, Epicurus' disciple, defined the matter: "A man is happy when his body is in good case, and he has good hope that it will continue so." Directly or indirectly, therefore, every happiness came back, in the rough phrase of Epicurus, to one's belly at last. [382]