Homosexuality is regarded as shameful by barbarians and by those who live under despotic governments just as philosophy is regarded as shameful by them, because it is apparently not in the interest of such rulers to have great ideas engendered in their subjects, or powerful friendships or passionate love - all of which homosexuality is particularly apt to produce.

Too much attention to health is a hindrance to learning, to invention, and to studies of any kind, for we are always feeling suspicious shootings and swimmings in our heads, and we are prone to blame studies from them.

The love, more especially, which is concerned with the good, and which is perfected in company with temperance and justice, whether among gods or men, has the greatest power, and is the source of all our happiness and harmony, and makes us friends with the gods who are above us, and with one another.

To be conquered by yourself is of all things most shameful and vile.

Music is a defining element of character.

I have hardly ever known a mathematician who was capable of reasoning.

Herein is the evil of ignorance, that he who is neither good nor wise is nevertheless satisfied with himself: he had no desire for that of which he feels no want.