"We are all in the gutter, but some of us are looking at the stars."

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

我们要用全球化的视野来思考问题，用本土化的行动来解决问题。

To me, happiness is about three things: someone to love, something to do, and something to look forward to.

The most profound discoveries often come from the simplest observations.

Sustainability isn't just an option; it's our responsibility to future generations.