Sometimes, I think the reason we hold onto something so tight is because we fear something so great will never happen again.

The function of thought is to guide successful behavior.

The novel is the most democratic of all art forms because it depends only on the reader’s imagination.

未来的挑战不仅仅是存储更多的数据，而是理解这些数据。

理论的任务不仅是了解自然是什么以及它是如何运作的，而且要尽可能接近理解为什么自然是这样的而不是其他样子的不可达到的目标。

"The past is never dead. It's not even past."

Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.