Teaching is the human thing, in terms of building the kids' self-confidence, so if we take the broad ways that we want to see society to be better, science can only provide certain pieces of that.

I'm never fully satisfied with any Microsoft product.

The most straightforward path would be if we could bring the cost of solar electric and wind down by another factor of say, three, and then have some miraculous storage solution, so that not only over the 24-hour day but over long periods of time where the wind doesn't blow, you have reliable energy. That's a path. But energy storage is hard. That's not a guaranteed path.

As I look forward, I'm very optimistic about the things I see ahead.

I believe that every life is valuable. That we can make things better. That innovation is the key to a bright future. That we're just getting started.

In a budget, how important is art versus music versus athletics versus computer programming? At the end of the day, some of those trade-offs will be made politically.

When you have money in hand,only you forget who are you .But when you do not have any money in your hand,the whole world forget who you are.It's life.