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。
人们算计太多，思考太少 。
The only thing necessary for the triumph of evil is for good men to do nothing.
科学中的创新往往来自于以新的方式看待老问题。