Man is most nearly himself when he achieves the seriousness of a child at play.
People ought to fight to keep their law as to defend the city s walls.
All things come into being by conflict of opposites.
Most people do not take heed of the things they encounter, nor do they grasp them even when they have learned about them, although they suppose they do.
From out of all the many particulars comes oneness, and out of oneness come all the many particulars.
The only constant is change.