Justice means minding one's own business and not meddling with other men's concerns.
They (the poets) are to us in a manner the fathers and authors of the wisdom.
Numbers are the highest degree of knowledge. It is knowledge itself.
And if we are good, we are beneficent: for all good things are beneficial. Are they not?
And we have made of ourselves living cesspools, and driven doctors to invent names for our diseases.
It was Plato, according to Sosigenes, who set this as a problem for those concerned with these things, through what suppositions of uniform and ordered movements the appearances concerning the movements of the wandering heavenly bodies could be preserved.