Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.

I'm not a person who likes to be ordinary.

The only way to learn mathematics is to do mathematics.

被原谅只是礼物的一半。另一半是我们也可以原谅，恢复失去的，修补破碎的。