"Every character is a world, and every world is a question."

A theory should not attempt to explain all the facts, because some of the facts are wrong.

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

The beauty of literature is that it allows us to live a thousand lives in one.

可持续性不是一种选择，而是我们对下一代的责任。

语言的美在于它能够表达无法表达的东西。