I never make the mistake of arguing with people for whose opinions I have no respect.

译文：即便我改变了外在的样子，人们依然难以领悟真谛，那些如同行尸走肉般生活的人，我并不为之忧虑。我要尽情地回归质朴纯真，哪怕被人嘲笑不够潇洒风流。

投资更清洁的煤炭技术是对能源未来的投资。

To write is to leave a mark, to say: I was here, I existed.

教师不应该像往空容器里倒知识那样教学，而应该像点燃火焰那样教学。