The world is full of obvious things which nobody by any chance ever observes.
世界上充满了显而易见的事情,但没有人会去注意它们。
反对森林砍伐的斗争是为人类的未来而战。
"The true journey of discovery consists not in seeking new landscapes, but in having new eyes."
做数学就是探索一个无限的思想景观。