I know that a bird can fly, a fish can swim, an animal can run. For that which runs a net can be made; for that which swims a line can be made; for that which flies a corded arrow can be made. But the dragon’s ascent into the wind and the clouds is something which is beyond my knowledge. Today I have seen Lao Tsu who is perhaps like a dragon.

Confucius, describing his meeting with Lao Tsu