世界是一个谜题，碎片散落在各处。
The real challenge in computer science is not to write programs, but to understand the nature of computation.
I'm very proud to be black, but black is not all I am. That's my cultural historical background, my genetic makeup, but it's not all of who I am nor is it the basis from which I answer every question.
The problem with people who have no vices is that generally you can be pretty sure they’re going to have some pretty annoying virtues.