人恶人怕天不怕，人善人欺天不欺。
译文：凶恶之人会令其他人害怕，可上天不会惧怕，良善之人会被其他人欺负，但上天不会欺负。赏析：人的善恶，上天会明察秋毫，也自有报应。那些蛮横霸道之人，总会有人收拾他，而那些善良的人，自会有余福。
今天种下的每一棵树都是对明天的承诺。
The study of algorithms is not just about solving problems, but about understanding the limits of what is computationally possible.
Owning stocks is like having children – don't get involved with more than you can handle.
森林的真正价值不仅仅以木材的板英尺来衡量，还在于它所维持的生命和生态系统。
The essence of mathematics lies in its freedom.
我们都是自己思想的囚徒。
