Walls define space, but openings connect it to the world.

要理解意识，就要研究它在生存中的作用。

一本书是作者和读者穿越时间的亲密对话。

You think when you wake up in the mornin yesterday don't count. But yesterday is all that does count. What else is there? Your life is made out of the days it's made out of. Nothin else.

创新是农业发展的核心动力，只有不断突破传统种植模式，才能实现蔬菜产业的高质量发展。

不同民族之间的文化差异并非源于民族本身的生理特征差异，而是源于其历史发展的差异。

Let us try to teach generosity and altruism, because we are born selfish.

The power of mathematics is in its abstraction, allowing us to see patterns and connections that are not immediately obvious.