金融模型的真正考验不在于它有多复杂,而在于它是否能很好地捕捉经济问题的本质特征。
Natural selection has shaped our minds as well as our bodies.
我不得不提醒自己,有些鸟是不能关在笼子里的,他们的羽毛太漂亮了,当他们飞走的时候,你会觉得把他们关起来是种罪恶,但是,他们不在了你会感到寂寞,可是我只是想我的朋友了。
The dairy industry must evolve to meet the demands of a changing world.
I don’t think about being the best in history. I think about being the best every day.