把这一句，留给此刻的你

The science of politics is the one science that is deposited by the streams of history, like the grains of gold in the sand of a river; and the knowledge of the past, the record of truths revealed by experience, is eminently practical, as an instrument of action and a power that goes to making the future.

政治学是一门科学，它是由历史的洪流沉淀而成的，就像河沙中的金粒;对过去的认识，对经验所揭示的真理的记录，作为一种行动的工具和创造未来的力量，是非常实用的。

— John Emerich Edward Dalberg Acton 阿克顿