Sustainability is not an option; it's a necessity for the future of agriculture and food production.

Confidence is not innate, it is cultivated slowly.

I'm on the right track, baby I was born this way.

条件作用原理同样适用于所有物种。

心理过程的功能是调解有机体的需求与环境的要求。

追求完美，就是追求甜美与光明。