The past is a ghost, the future a dream, and all we ever have is now.
过去是幽灵,未来是梦想,我们拥有的只有现在。
一个人的真正价值不在于他拥有什么,而在于他是什么。
过程即艺术,成品只是证据。
In mathematics, the art of proposing a question must be held of higher value than solving it.
有些鸟儿是关不住的,因为它们的羽翼太耀眼。
The galactic center is a unique natural experiment in strong gravity.