经济学的艺术在于理解规则与行为之间的微妙互动。

I think goals should never be easy, they should force you to work, even if they are uncomfortable at the time.

It is the mind that makes the body rich.

"Books are the maps of human experience."

水产养殖的未来在于与自然和谐相处，而不是支配自然。