God is day and night, winter and summer, war and peace, surfeit and hunger.
Nothing endures but change. There is nothing permanent except change. All is flux, nothing stays still.
Opposition brings concord. Out of discord comes the fairest harmony.
Whoever cannot seek the unforeseen sees nothing for the known way is an impasse.
Stupidity is better kept a secret than displayed.
Those unmindful when they hear, for all they make of their intelligence, may be regarded as the walking dead.