心灵是应对生活挑战的生物工具。
The mind is a biological instrument for managing life's challenges.
The moment you stop worrying about what people think is the moment you become free.
贫困和无知可能逐渐消失的希望,很大程度上源于十九世纪工人阶级的稳步进步。
一个人对于死亡的恐惧程度与其财富的增长程度成正比。