你知道，在中世纪的英国，但你遇见一个非常穷苦的人，你会认为他“不走运”，直接地说，那些不被幸运之神眷顾的人。
You know, in the Middle Ages, in England, when you met a very poor person, that person would be described as an "unfortunate" -- literally, somebody who had not been blessed by fortune, an unfortunate.
人工智能的真正挑战不仅仅是构建智能机器，而是构建能够学习和适应的机器。
The olive tree teaches us that strength comes from deep roots.
改变，就像治愈一样，需要时间。