Big companies are often in the process of laying off workers. Small startup companies are the ones that are hiring. The statistics prove that's where job growth is going to occur.

And innovation and entrepreneurship is the opportunity and best opportunity we have to grow the economy.

My goal is not to create a circumstance in which no one fails, but one in which many will succeed.

I am convinced that success is not measured by what you get out of life, but by what you give back.

Wouldn't it help Americans more, in the long run, if we were forced to accept some responsibility for the environmental wreckage we prefer to assume is totally out of our control?

Geologists are rapidly becoming convinced that the mammals spread from their central Asian point of origin largely because of great variations in climate.

In my personal belief, the big problem with climate change is getting people to understand the magnitude and scale that we're dealing with. If you buy a vehicle that gets 35 miles to the gallon, that means nothing; it's not enough. We need to make changes across society and in every piece of the energy pie.

The scientific community should work as hard as possible to address major issues that affect our everyday lives such as climate change, infectious diseases and counterterrorism; in particular, 'clean energy' research deserves far higher priority. And science and technology are the prime routes to tackling these issues.