来访者知道什么伤害了他，该往哪个方向走，哪些问题是关键的，哪些经历被深深埋藏。
The only impossible journey is the one you never begin.
The key to advancing computer science is collaboration across disciplines.
The act of writing is an act of discovery.
The power of a man, to take it universally, is his present means, to obtain some future apparent good.