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。
The value of unpaid work is often invisible in economic measures, yet it is the backbone of society.
The most important thing in mathematics is to ask the right questions.
我们要做的是让用户的生活更简单。
You can't be wise and in love at the same time.
"La verdadera patria del escritor es su lengua."