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

The fundamental impulse that sets and keeps the capitalist engine in motion comes from the new consumers' goods, the new methods of production or transportation, the new markets, the new forms of industrial organization that capitalist enterprise creates.

我的作品是一种考古学，挖掘被遗忘的故事。

The application scenarios of drones far exceed our imagination.