Challenges are what make life interesting. Overcoming them is what makes life meaningful.

The moment you stop trying to be better is the moment you start to get worse.

Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.

挑战在于将平凡变得非凡。

I'm comfortable with who I am and what I do. I know what I bring to the table.

语出西汉·桓宽《盐铁论·疾贪》。表：古代测量日影以计时的标杆。要想让影子正，就要先将标杆树直；要想让下面的人清廉，就要先自己做到清廉。说明上位是下位的表率。