计算效率的概念是学习算法设计的核心。

The only true voyage of discovery would be not to visit strange lands but to possess other eyes.

创新不是单一事件，而是一个过程。

I believe in pink. I believe that laughing is the best calorie burner. I believe in kissing, kissing a lot. I believe in being strong when everything seems to be going wrong. I believe that happy girls are the prettiest girls. I believe that tomorrow is another day and I believe in miracles.

The principal effect of the progress of society is to increase the quantity of wealth, and the power of distributing it.

For in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's futures. And we are all mortal.