The heart breaks and breaks and lives by breaking.
一本好书是我生命中的一个事件。
皱纹应当只是微笑留下的印记。
最重要的发现是那些迫使我们修正先前观念的发现。
I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.
真相很少是纯粹的,也从不简单。