船在港口是安全的，但那不是船被建造的目的。

两个物体的相互作用力总是大小相等，方向相反，同时出现或消失且作用于同一直线上。

每一分都很重要，你必须为每一分而战。

In the end, we are all just trying to survive.

The fountain of content must spring up in the mind, and they who have so little knowledge of human nature as to seek happiness by changing anything but their own dispositions will waste their lives in fruitless efforts.

"The writer's job is to get the main character up a tree, and then throw rocks at him."

Technology should serve ecology, not the other way around.