每个生命都会留下证据的痕迹;传记作者就是追踪这些痕迹的侦探。
The truth is, I don't know what I would have done without mathematics.
活得足够长以超越你可能获得的任何怨恨感是值得的。
Freedom is a heavy load, a great and strange burden for the spirit to undertake.