Man is most nearly himself when he achieves the seriousness of a child at play.
War is the mother of everything.
Nothing endures but change. There is nothing permanent except change. All is flux, nothing stays still.
Eyes are more accurate witnesses than ears.
There is but one world common for those who are awake, but when men are asleep, each turns away into a world of his own.
The Lord whose oracle is at Delphi neither reveals nor conceals, but gives a sign