Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
学习是系统中产生的任何变化，这些变化或多或少会永久性地改变其适应环境的能力。
语出（南宋）崔敦礼《刍言》。自以为聪明的人，其实并不聪明；自以为能干的人，其实并不能干。
Love is space and time measured by the heart.
The truth is not always beautiful, nor beautiful words the truth.
唯一无法被帮助的人是那些责备他人的人。
The past is a puzzle, and we are all trying to piece it together.
We're at the beginning of a new era where AI can help solve some of the world's most challenging problems.