The value of unpaid work is often invisible in economic measures, yet it is the backbone of society.
无偿工作的价值在经济衡量中常常不可见，但它却是社会的支柱。
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
I don't follow the crowd. I lead it.