Never stop learning, because the world never stops changing.
永远不要停止学习，因为世界从未停止变化。
The ultimate goal of artificial intelligence is to create machines that can perform tasks that would require intelligence if done by humans.
竞争均衡解决方案的存在与规范经济学或福利经济学之间的关系也许同样重要。
板块构造理论是地质学的统一理论。