每一本书都是一次旅程，每一次旅程都是一本书。
Every book is a journey, and every journey is a book.
It goes against the grain of modern education to teach children to program. What fun is there in making plans, acquiring discipline in organizing thoughts, devoting attention to detail and learning to be self-critical?
The greatest enemy of a trader is hope.
我们都是陌生人，甚至对自己来说也是。
追求数学知识是一场永无止境的冒险。