质量不是成本；它是一种投资。

心灵是一个过程流，而非对象的集合。

深度学习是一种机器学习形式，它使计算机能够从经验中学习，并通过概念层次来理解世界。

"A book is a mirror: if an ape looks into it, an apostle is unlikely to look out."

The best way to be successful is to be confident.

When power is scarce, a little of it is tempting.

Freedom is the recognition of necessity.