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。
"Books are the keys to understanding the world and ourselves."
最美的东西往往是最简单的。
There is no perfection only life.
The ability to read and interpret the genetic code has revolutionized our approach to medicine and genetics.