历史是让死者开口说话的艺术。
A mathematician's work is never done; there are always more problems to solve.
要将一个国家从最低级的野蛮状态带到最高度的富裕,所需的几乎只有和平、低税收和较为合理的司法管理。
释义:刑罚与奖赏的根本目的在于鼓励善良、惩罚邪恶,帝王治理天下时应该统一标准,不能因为人的身份地位高低、关系亲疏而有所偏颇。这是对公平公正治理原则的阐述。 
Investing in cleaner coal technologies is an investment in our future.