The pleasures of specifically different beings, then, are specifically different; and we might naturally suppose that there would be no specific difference between the pleasures of beings of the same species. And yet there is no small difference, in the pleasures of men at least: what pleases this man pains that; what is grievous and hateful to one is pleasant and lovable to another. This occurs in the case of sweet things, too: a man in a fever has a different notion of what is sweet from a man in health; and a feeble man’s notion of what is hot is different from that of a robust man. And the like occurs in other matters also.
But in all matters of this kind we hold that things are what they appear to be to the perfect man.
Now, if this opinion is correct, as we hold it to be—if, that is, in every case the test is virtue, or the good man as such—then what appears to him to be pleasure will be pleasure, and what he delights in will be pleasant.