不要等到别人告诉你准备好了才行动，这个世界或许会说你还不够格。展现自己，放手去做。

科幻小说是我们时代的现实主义。

我们是我们反复做的事情。因此，卓越不是一种行为，而是一种习惯。

自由从来不是被压迫者自愿给予的，必须由被压迫者争取。

So given a Time Turner, I would tell my 21-year-old self that personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two. Life is difficult, and complicated, and beyond anyone’s total control, and the humility to know that will enable you to survive its vicissitudes.

释义：小的善行虽然不能带来巨大的好处，但是不能不做；小的恶行虽然不能惹来灾祸，但是不能不改。

Sustainability is not just a trend, it's a responsibility.

艺术家必须是可能性的预言者。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.