someone who is healthy and moderate with himself goes to sleep only after having done the following: First, he rouses his rational part and feasts it on fine arguments and speculations; second, he neither starves nor feasts his appetites, so that they will slumber [e] and not disturb his best part with either their pleasure or their pain, but they'll leave it alone, pure and by itself, to get on with its investigations, to [572] yearn after and perceive something, it knows not what,1 whether it is past, present, or future; third, he soothes his spirited part in the same way, for example, by
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