Machines will follow a path that mirrors the evolution of humans. Ultimately, however, self-aware, self-improving machines will evolve beyond humans' ability to control or even understand them.

Doing real world projects is, I think, the best way to learn and also to engage the world and find out what the world is all about.

The purposeful destruction of information is the essence of intelligent work.

The software programs that make our body run ... were evolved in very different times. We'd like to actually change those programs. One little software program, called the fat insulin receptor gene, basically says, 'Hold onto every calorie, because the next hunting season may not work out so well.' That was in the interests of the species tens of thousands of years ago. We'd like to turn that program off.

Evolution is a process of creating patterns of increasing order....I believe that it's the evolution of patterns that constitutes the ultimate story of our world. Evolution works through indirection: each stage or epoch uses the information-processing methods of the previous epoch to create the next.

So what used to fit in a building now fits in your pocket, what fits in your pocket now will fit inside a blood cell in 25 years.

My mission at Google is to develop natural language understanding with a team and in collaboration with other researchers at Google.