The softest things in the world overcome the hardest things in the world.
Stop thinking, and end your problems.
A man with outward courage dares to die; a man with inner courage dares to live.
He who overcomes himself is mighty.
Why is the sea king of a hundred streams? Because it lies below them. Therefore it is the king of a hundred streams.
He who knows much about others may be learned, but he who understands himself is more intelligent. He who controls others may be powerful, but he who has mastered himself is mightier still.