强调历史研究既要理解历史背景，又要保持学术批判性。

你必须愿意比任何人都更努力。

Never stop believing in yourself.

I don't believe in pessimism. If something doesn't come up the way you want, forge ahead. If you think it's going to rain, it will.

A picture must be grasped at once, as a whole, like a piece of music or a poem.