One must know that war is common, justice is strife, and everything happens according to strife and necessity.
Eyes are more accurate witnesses than ears.
No one can step twice into the same river, nor touch mortal substance twice in the same condition. By the speed of its change, it scatters and gathers again.
Everything is in flux.
People ought to fight to keep their law as to defend the city s walls.
All things flow, nothing abides.