如果一个问题无法解决，那就扩大它的范围。
If a problem cannot be solved， enlarge it.
有时化学中最简单的解决方案是最优雅和最强大的。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
The first sentence of the novel is the most important, but the last sentence is the one that stays with you.
最好的采石场不仅在地面上留下洞，还在社区中留下价值。
Education is the most powerful weapon which you can use to change the world.
Sometimes we stare so long at a door that is closing that we see too late the one that is open.