人生比我们想象的要复杂得多，也简单得多。

选择不够精当，叙述不够详尽

I think as technologists we should have some safe places where we can try out new things and figure out the effect on society.

富贵不能淫，贫贱不能移。越是富贵，越是不能骄傲；越是贫穷，越要坚守志向。虽然尊敬贤能的人，但也不能贬斥那些愚笨不肖的人。

The speed of change is such that we have to run faster just to stay in the same place.

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.

I’ve realized that the most important thing is to be happy with yourself.