The purpose of mental activity is to guide action.

对抗压力最强大的武器是我们选择一种思想而非另一种的能力。

Every electron tells a story, and our job is to listen with attosecond precision.

心灵是一个协调活动的系统。

The truth is rarely pure and never simple.

世界可能很刻薄，但人们不必如此。