最好的数学不仅正确，而且具有启发性。

I'm not perfect, but I'm trying every day to be better.

Creativity requires the courage to let go of certainties.

The facility which this revenue gives for borrowing money is what has enabled the greater part of Europe to accumulate a capital of such a magnitude.

生命的意义在于我们如何赋予它意义。

你看得越多，看到的就越多。