"The best way to predict the future is to invent it."

Policy debates should be grounded in rigorous empirical analysis.

The people are the government, administering it by their agents; they are the government, the sovereign power.

The best way to learn mathematics is to do mathematics.

译文：贫困时的朋友不能遗忘，共患难的妻子不能抛弃。体现对情义与责任的坚守。