出自《论语·泰伯》。没有在哪个位置上担任职务，就不要去考虑那个职位应当过问的事情。

Insight is the sudden comprehension of the relations among the parts of a problem.

We don't inherit the earth from our ancestors; we borrow it from our children. Let's return it better.

I don't know anyone who needs a strap-on more than me.