地球上唯一伟大的是人，人身上唯一伟大的是心灵。

The only person you are destined to become is the person you decide to be.

儿童教育是人类最重要的一个问题。

模型的唯一真正检验是其预测未来的能力，而未来总是不确定的。

I have always believed that the way you treat others is a reflection of how you feel about yourself.

The pursuit of truth is a noble goal in life.

政策规则优于自由裁量，因为它们避免了时间不一致性问题。