障碍越大，克服它的荣耀就越大。
"The truth is rarely pure and never simple."
You are never too old to set another goal or to dream a new dream.
The only thing that really matters is, are you a good person?
世界上充满了那些小到足以让你心碎的东西。
软件开发中最重要的一个方面是清楚你要构建什么。