What I learned growing up on the farm was a way of life that was centered on hard work, and on faith and on thrift. Those values have stuck with me my whole life.

Crucial to understanding federalism in modern day America is the concept of mobility, or 'the ability to vote with your feet.' If you don't support the death penalty and citizens packing a pistol - don't come to Texas. If you don't like medicinal marijuana and gay marriage, don't move to California.

The foundation for future prosperity is built on the bedrock of good jobs and great schools. We are building a strong foundation one job at a time and one educated Texan at a time.

Our goal is to displace the entrenched powers in Washington, restore the rightful balance between the state and federal government.

As a culture or a civilisation, we are a bit juvenile; it's like 'Oh, I have all this power, whoa, this is so cool, I can transform the earth and I can produce all this wealth. But we're blinded by our success in a naive way. There's more to life, actually, and I think the sustainability issue is also helpful in reminding us about that.

All our environmental problems become easier to solve with fewer people and harder - and ultimately impossible to solve - with ever more people.

As a nation, we owe a great deal to the National Audubon Society, one of our most distinguished and important environmental organizations, and all those who work to protect America's open land and waterways.

Many of the problems facing the nation and the world today may only be solved if their technical elements are understood - climate change, energy supply, health care, and infrastructure, to name just a few.