The opposite is beneficial; from things that differ comes the fairest attunement; all things are born through strife.

War is the mother of everything.

The people must fight on behalf of the law as though for the city wall.

He who does not expect will not find out the unexpected, for it is trackless and unexplored

A blow to the head will confuse a man's thinking, a blow to the foot has no such effect, this cannot be the result of an immaterial soul.

Nothing endures but change. There is nothing permanent except change. All is flux, nothing stays still.

Everything changes but change itself. Everything flows and nothing remains the same... You cannot step twice into the same river, for other waters and yet others go flowing ever on.