Philosophy is the highest music.

Evil is the vulgar lover who loves the body rather than the soul, inasmuch as he is not even stable, because he loves a thing which is in itself unstable, and therefore when the bloom of youth which he was desiring is over, he takes wing and flies away, in spite of all his words and promises; whereas the love of the noble disposition is life-long, for it becomes one with the everlasting.

And tell him it's quite true that the best of the philosophers are of no use to their fellows; but that he should blame, not the philosophers, but those who fail to make use of them.

No law or ordinance is mightier than understanding.

When you swear, swear seriously and solemnly, but at the same time with a smile, for a smile is the twin sister of seriousness.

Physical excellence does not of itself produce a good mind and character: on the other hand, excellence of mind and character will make the best of the physique it is given.

What is better adapted than the festive use of wine in the first place to test and in the second place to train the character of a man, if care be taken in the use of it? What is there cheaper or more innocent?