I have a dream that one day this nation will rise up and live out the true meaning of its creed.

有一个你无法解决的问题总是好的。这意味着你有事情要做。

知识若不付诸实践，便毫无价值。

年轻人不知道什么是谨慎，因此他们尝试不可能的事情——并且一代又一代地实现了它。

"The world is a book, and those who do not travel read only a page."

Science is not about being right; it's about being less wrong.

Stories are the way we understand the world, and the way we understand ourselves.

沉默从来不是空的；它充满了可能性。