对认可的渴望是最基本的人类渴望，它是人类历史上最伟大成就和最伟大悲剧的源泉。
The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.
"The power of words is immense, but it is also fragile and easily misused."
理解历史的唯一方式就是活在其中。
科学的美在于它让我们看到的不是世界的现状，而是它可能的样子。
People are capable, at any time in their lives, of doing what they dream of.
