给定系统中的酸和碱不是绝对的，而是相互关联的。

To catch a husband is an art; to hold him is a job.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.

Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

But there is only one thing which gathers people into seditious commotion, and that is oppression.

关于神，我无法知道他们是否存在。因为有许多阻碍我们认知的因素：问题的晦涩和人类生命的短暂。