Of birds I know that they have wings to fly with, of fish that they have fins to swim with, of wild beasts that they have feet to run with. For feet there are traps, for fins nets, for wings arrows. But who knows how dragons surmount wind and cloud into heaven? This day I have seen [Lao-tzu] and he is a dragon.
—from the way of life According to Lao Tzu, translated by Witter Bynner