Emotions are adaptations that have evolved to coordinate other psychological mechanisms in solving specific adaptive problems.

自由民主的传播和世界经济的整合是现代时代最重要的两个趋势。

The most important thing I have learned is that the best way to get something done is to begin.

The world is a place of the living, and the dead have no place in it. The dead are nothing. They are not even a memory. They are forgotten.