数学中真正的挑战不是解决问题,而是提出正确的问题。
人不应该相信或不相信,而应该保持怀疑。
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。
No one can rob us of our quest for truth.