"Deep learning is a form of machine learning that enables computers to learn from experience and understand the world in terms of a hierarchy of concepts."

变革在开始时最艰难，在中期最混乱，在结束时最美好。

I have learned to seek my happiness by limiting my desires， rather than in attempting to satisfy them.

Quality is not a right; it is a privilege.

Sometimes you have to play a long time to be able to play like yourself.

自然定律相对于参考系变换的对称性是物理学最基本的原理之一。

即使是最强大的人也需要有人站在他身边。

我相信每一个故事都是一种真相。