你不能因为我做我自己而生气，我又没干涉你。

学习应使人感到快乐，否则不能称之为真正的学习。

Love doesn't just sit there, like a stone; it has to be made, like bread, remade all the time, made new.

It is easier to fight for one's principles than to live up to them.

创新不是一种选择；它是煤炭行业生存的必要条件。