如果给我一部时间机器，我会告诉21岁的自己，人的幸福在于知道生活不是一份漂亮的成绩单，你的资历、简历，都不是你的生活，虽然你会碰到很多与我同龄或更老一点的人今天依然还在混淆两者。生活是艰辛的，复杂的，超出任何人的控制能力，而谦恭地了解这一点，将使你历经沧桑后能够更好的生存。
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.
可持续性不是一种趋势，而是我们共同的责任。
我不必完美，我只需要做我自己。
自由始于无知结束之时。
You can’t go back and change the beginning, but you can start where you are and change the ending.
History is not just about kings and battles—it's about the people who lived through it.
