I would like to fly in space.Absolutely.That would be cool.I used to just do personally risky things， but now I’ve got kids and responsibilities， so I can’t be my own test pilot.That wouldn’t be a good idea.But I definitely want to fly as soon as it’s a sensible thing to do.

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。

记忆是咬自己尾巴的狗。

经济史告诉我们，改变是可能的，但很少是容易的。

"The only thing that is truly infinite is the human capacity for love."

我想，你无法不爱一个人。你只能找个地方安放这份爱。

真正的农业领导力意味着让土地比我们发现时更肥沃。