Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
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.
我不认为你能真正改变你是谁,但你可以改变你生活的方式。
老虎间,还可以相互靠近,人即使很熟悉,还是不能真正亲近;在你面前议论别人是非的人,其实这种人就是一个搬弄是非的人。
Don't let the noise of others' opinions drown out your own inner voice.