You have to have confidence in your ability, and then be tough enough to follow through.

写作就是让自己成为世界灵魂的回声。

I have come to realise that men are not born to be free.

Chemistry is the central science that connects physics and biology.

但是，大人们永远也不会了解这件事有多么重要！

忧心生时，你即受其所役。