I have many sources of inspiration. I'd have to point to Dr. Martin Luther King, first and foremost. But my parents were good, hardworking folks who kept us in the church and the public schools, and out of trouble, for the most part.

Now is not the time to shrink from the challenge of saving our only home in the universe. Now is not the time to pull into ourselves, retreating into either survivalist or escapist mode. To the contrary, this is the time for titans, not turtles. Now is the time to open our arms, expand our horizons, and dream big. Big problems require big solutions.

All the big ideas for getting us onto a lower carbon trajectory involve a lot of people doing a lot of work, and that's been missing from the conversation. This is a great time to go to the next step and ask, well, who's going to do the work? Who's going to invest in the new technologies? What are ways to get communities wealth, improved health, and expanded job opportunities out of this improved transition?

The surest path to safe streets and peaceful communities is not more police and prisons, but ecologically sounds economic development. And that same path can lift us to a new, green economy - one with the power to lift people out of poverty while respecting and repairing the environment.

Clean coal represents a breakthrough in the marketing of coal, but not in the science of burning coal.

I'm saying you should have the right not only to be an energy consumer but an energy producer. Follow the money to understand why my message keeps getting drowned out. Big oil and big coal are terrified by the green jobs message.

I learned more in those six months [ in the White House] than in the prior six years. I don't think that anybody who has had the privilege to serve the country at that level should walk out and behave like a crybaby. And I plan to continue to serve the country in other capacities.