I dreamed a dream in time gone by.

生活近看是悲剧，远看是喜剧。

In computational complexity, we are not just dealing with the limits of what we can compute, but also with the limits of what we can prove.

感谢一位改变了你生活的老师。

艺术的秘密在于热爱你所做的事情。

人工智能的未来在于与各行各业的深度融合。