自由贸易使得资源得以最优配置。
A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.
I always believe that I can win, but I know it's not easy.
卡塞尔文献展是对人类精神的庆祝。
种一棵树最好的时间是20年前,其次是现在。
真正的问题不是机器是否会思考,而是人是否会思考。