Wisdom is a blaze, kindled by a leaping spark.

Vision, in my view, is the cause of the greatest benefit to us, inasmuch as none of the accounts now given concerning the Universe would ever have been given if men had not seen the stars or the sun or the heavens. But as it is, the vision of day and night and of months and circling years has created the art of number and has given us not only the notion of Time but also means of research into the nature of the Universe. From these we have procured Philosophy in all its range, than which no greater boon ever has come or will come, by divine bestowal, unto the race of mortals.

Anything worth knowing is already known and must be remembered and reclaimed by the soul.

To honor with hymns and panegyrics those who are still alive is not safe; a man should run his course and make a fair ending, and then we will praise him; and let praise be given equally to women as well as men who have been distinguished in virtue.

The affairs of music ought, somehow, to terminate in the love of the beautiful.

There should exist among the citizens neither extreme poverty nor again excessive wealth, for both are productive of great evil.

Necessity, who is the mother of our invention.