It looks like the thing that separates out the capable students from the really successful ones is not so much their knowledge...but their persistence at something.

There is a science to managing high tech businesses, and it needs to be respected. One of them is that in technology businesses, leadership is temporary. It's constantly recycling. So the asset has limited lifetime.

I use Google+, and I find the quality of the comments are very sophisticated because there is more trust inside of Google+ than there is inside of Twitter and Facebook, for example.

The core problem is that the world is full of people who would like to take 99 per cent of the information that's on the Internet, and eliminate 1 per cent. Everyone has their own thing they don't like.

We didn't see any statistically significant relationship between our buzz and our short-term sales...Is that the end of the story? I would say no. This is one study on a set of brands in a particular company within a certain segment of the consumer-packag ed-goods industry. It is by no means a generalized result that applies to all industries.

I've come to a view that humans will continue to do what we do well, and that computers will continue to do what they do very well, and the two will coexist, but in different spaces.

There's been spying for years, there's been surveillance for years, and so forth, I'm not going to pass judgement on that, it's the nature of our society.