计算机是最终的污染者：其粪便与所生产的食物没有区别。
The computer is the ultimate polluter: its feces are indistinguish- able from the food it produces.
The beauty of mathematics lies in its ability to describe the universe in a language that is both precise and universal.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Sustainability isn't just a buzzword—it's the foundation of responsible forestry.
The only valid data for psychology are observable behaviors.