唯一能阻止你的人是你自己。

我相信科学具有改善人类生活的巨大潜力。

The beauty of mathematics is that it is both an art and a science.

Anarchy is the permissive cause of war; it creates an environment in which states have to rely on self-help to ensure their survival.

经济周期不仅仅是围绕确定性趋势的波动；它们代表了趋势本身的转变。