The trouble with energy farming is that the energy isn't always where you want to use it, and it isn't always when you want to use it.

When you want to do your homework, fill out your tax return, or see all the choices for a trip you want to take, you need a full-size screen.

if I'd had some set idea of a finish line, don't you think I would have crossed it years ago?

I meet people overseas that know five languages - that the only language I'm comfortable in is English.

The misconception that aid falls straight into the hands of dictators largely stems from the Cold War era.

The most interesting biofuel efforts avoid using land that's expensive and has high opportunity costs. They do this by getting onto other types of land, or taking advantage of byproducts that aren't used in the food chain today, or by intercropping.

If I hadn't given my money away, I'd have had more than anyone else on the planet.

My mom was on the United Way group that decides how to allocate the money and looks at all the different charities and makes the very hard decisions about where that pool of funds is going to go.

Money has no utility to me beyond a certain point.

Well, no one gives aid to Zimbabwe through the Mugabe government.

The pain passes, but the beauty remains.

The most beautiful thing you can wear is confidence.

When the PC was launched, people knew it was important.

I didn't used to wear a watch. Now I have a SPOT watch, which I wear all the time.

Beauty is not in the face; beauty is a light in the heart.

This is a wonderful day, I have never seen this one before. 

You may be one person to the world but you may also be the world to one person.

You are imperfect, permanently and inevitably flawed. And you are beautiful.

The typical project design time for a large company like IBM - and they keep track of this - is a little over four years.

Just in terms of allocation of time resources, religion is not very efficient. There's a lot more I could be doing on a Sunday morning.

Unfortunately, the highly curious student is a small percentage of the kids.

Common Core is a big win for education.

We all know that there are these exemplars who can take the toughest students, and they'll teach them two-and-a-half years of math in a single year.

Research shows that there is only half as much variation in student achievement between schools as there is among classrooms in the same school. If you want your child to get the best education possible, it is actually more important to get him assigned to a great teacher than to a great school.