If you are insecure, guess what? The rest of the world is, too. Do not overestimate the competition and underestimate yourself. You are better than you think.
In the end, we will remember not the words of our enemies, but the silence of our friends.
第一代杂种的同一性,第二代的不相似性,是精确观察者无法忽视的事实。
The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.