Ideas are the source of all things

The greatest mistake in the treatment of diseases is that there are physicians for the body and physicians for the soul, although the two cannot be separated.

The tyranny imposed on the soul by anger, or fear, or lust, or pain, or envy, or desire, I generally call 'injustice.'

You ought not attempt to cure the eyes without the head, or the head without the body, so neither ought you attempt to cure the body without the soul.

Your dog is your only philosopher.

In particular I may mention Sophocles the poet, who was once asked in my presence, How do you feel about love, Sophocles? are you still capable of it? to which he replied, Hush! if you please: to my great delight I have escaped from it, and feel as if I had escaped from a frantic and savage master. I thought then, as I do now, that he spoke wisely. For unquestionably old age brings us profound repose and freedom from this and other passions.

. . . you did not seem to me over-fond of money. And this is the way in general with those who have not made it themselves, while those who have are twice as fond of it as anyone else. For just as poets are fond of their own poems, and fathers of their own children, so money-makers become devoted to money, not only because, like other people, they find it useful, but because it's their own creation.