知足者常乐，追求无止境的欲望永无满足。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."

The novel is a mirror walking along a main road.

物理定律的对称性具有根本的重要性。