There is harmony in the tension of opposites, as in the case of the bow and lyre.
Dogs bark at a person whom they do not know.
There is nothing permanent in the world except change.
Those who hear and do not understand are like the deaf. Of them the proverb says: "Present, they are absent."
War is the mother of everything.
Those unmindful when they hear, for all they make of their intelligence, may be regarded as the walking dead.