The past is not a foreign land but our ancestral home.
技术必须以人为本，否则毫无意义。
科学家最强大的工具不仅是智力，还有想象力。
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.
