The most important property of a program is whether it accomplishes the intention of its user.

我知道这一刻有多重要，我不想有任何遗憾。

"The more you try to understand, the less you know."

Challenges are opportunities in disguise; embrace them.

大自然是一位了不起的老师，只要我们耐心观察，她就会向我们揭示她的秘密。