The real test of a good economist is whether he can explain the past better than others.
检验一个经济学家是否优秀的标准，是看他能否比别人更好地解释过去。
The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they think it will profit them.
人生没有如果，只有后果和结果。
在这片未知的土地上，每一步都带来新的发现，而每一个发现都加深了神秘感。
未来属于那些愿意在今天冒险的人。
主要的义务规则是那些要求或禁止某些行为的规则。