To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
成功的关键是专注于用户体验，而不仅仅是技术。
We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
In mathematics, the journey of discovery is as important as the destination.
对于非礼的事，上等到的士人根本不想；对于非礼的事，中等的士人从来不说；对于非礼的事，下等的士人紧闭门户。
It is the lives we encounter that make life worth living.