"Every book is a door to another world, a world that exists only in the imagination of the reader."
在所有团结的催化剂中,最容易运用和理解的一项,就是仇恨。
If they hate then let 'em hate and watch the money pile up.
The beauty of mathematics only shows itself to more patient followers.
——1920年1月为《大光报》年刊题词