We believe that we need to own and control the primary technologies behind the products we make.

And when you do I want you to know this， remember this: there is no such thing as failure. Failure is just life trying to move us in another direction. Now when you’re down there in the hole， it looks like failure. So this past year I had to spoon feed those words to myself.

The complexity of a learning problem is often determined by the size and structure of the hypothesis space.

在数字时代，处理和分析信息的能力已成为关键的竞争优势。