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.

The ethical issues of AI must be considered simultaneously with technological development.

The study of economic history is not just about the past; it’s about understanding the roots of present inequalities.

The highest title which a man can write upon the page of history is his own name.

The dirty little secret is that you don’t have to be a nice person to be a great artist.

When you attack coal, you attack middle America.

实验室里的每次失败都能教会你宝贵的东西——只要你留心。