我想尽可能靠近边缘而不掉下去。在边缘上，你能看到从中心看不到的各种东西。
I want to stand as close to the edge as I can without going over. Out on the edge you see all kinds of things you can't see from the center.
Who can afford to do professional work for nothing?
没有自然光的房间就不是房间。
The study of algorithms is not just about solving problems, but about understanding the limits of what is computationally possible.
生活的美妙之处在于你永远不知道接下来会发生什么。