最好的书是那些让你感觉不那么孤独的书。
"The best books are the ones that make you feel less alone."
The only way to learn mathematics is to do mathematics.
书是一面镜子：如果一头驴往里看，你不能指望看到一位使徒。
I tend to think that the camera is much more truthful than the human eye.
情感不需要复杂的解释——有时一笔画就能传达一切。