我爱我所做的，我对此充满热情。

The beauty of mathematics only shows itself to more patient followers.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

历史不是关于陌生人的故事，不是来自另一个世界的异类；它是关于如果早出生一点的我们的故事。