2. The second argument, establishing the same conclusion, is as follows:--No pleasures, except those belonging to philosophy or the love of wisdom, are completely true and pure. All the other pleasures are mere shadowy outlines, looking like pleasure at a distance, but not really pleasures when you contemplate them closely.[295] Pleasure and pain are two conditions opposite to each other. Between them both is another state, neither one nor the other, called neutrality or indifference. Now a man who has been sick and is convalescent, will tell you that nothing is more pleasurable than being in health, but that he did not know what the pleasure of it was, until he became sick. So too men in pain affirm that nothing is more pleasurable than relief from pain. When a man is grieving, it is exemption or indifference, not enjoyment, which he extols as the greatest pleasure. Again, when a man has been in a state of enjoyment, and the enjoyment ceases, this cessation is painful. We thus see that the intermediate state--cessation, neutrality, indifference--will be some times pain, sometimes pleasure, according to circumstances. Now that which is neither pleasure nor pain cannot possibly be both.[296] Pleasure is a positive movement or mutation of the mind: so also is pain. Neutrality or indifference is a negative condition, intermediate between the two: no movement, but absence of movement: non-pain, non-pleasure. But non-pain is not really pleasure: non-pleasure is not really pain. When therefore neutrality or non-pain, succeeding immediately after pain, appears to be a pleasure--this is a mere appearance or illusion, not a reality. When neutrality or non-pleasure, succeeding immediately after pleasure, appears to be pain--this also is a mere appearance or illusion, not a reality. There is nothing sound or trustworthy in such appearances. Pleasure is not cessation of pain, but something essentially different: pain is not cessation of pleasure, but something essentially different. [Footnote 295: Plato, Republic, ix. p. 583 B. [Greek: ou)de\ panalêthê/s e)stin e( tô=n a)/llôn ê(donê\ plê\n tê=s tou= phroni/mou, ou)de\ kathara/, a)ll' e)skiagraphême/nê tis, ô(s e)gô\ dokô= moi tô=n sophô=n tino\s a)kêkoe/nai.]]