Everything flows, nothing stands still.

There is nothing permanent except change.

Eternity is a child playing, playing checkers; the kingdom belongs to a child.

This universe, which is the same for all, has not been made by any god or man, but it always has been, is, and will be an ever-living fire, kindling itself by regular measures and going out by regular measures.

Where there is no strife there is decay: The mixture which is not shaken decomposes.

The sun is new each day.

It is in changing that things find purpose.

If you do not expect the unexpected, you will not find it; for it is hard to be sought out, and difficult.

If happiness consisted in the pleasures of the body, we should call oxen happy whenever they come across bitter vetch to eat.

To God everything is beautiful, good, and just; humans, however, think some things are unjust and others just

If it were not for injustice, men would not know justice.