"To live is the rarest thing in the world. Most people exist, that is all."
书籍是最终的被抛弃者:放下它们,它们会永远等你;关注它们,它们总是会回报你的爱。
The pursuit of mathematical knowledge is a journey that never ends.
There will be obstacles. There will be doubters. There will be mistakes. But with hard work, there are no limits.