I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.

她是我最好的朋友，我唯一的朋友！

Failure is not the opposite of success; it's a stepping stone to success.

夜晚是一位伟大的老师，但星星是它的课程。

"Words are, of course, the most powerful drug used by mankind."