I could not do what I do without the kindness, consideration, resourcefulness and work of librarians, particularly in public libraries... What started me writing history happened because of some curiosity that I had about some photographs I'd seen in the Library of Congress.

I feel very strongly that history is about everything. It isn't just about politics or the military or social issues. If art, music, engineering, science, medicine, finance, the world of architecture and technology - if those are left out, then you're not getting a full sense of the human condition. History is human and we human beings are involved in all kinds of things and that's part of our humanity.

However little television you watch, watch less.

The year 1776, celebrated as the birth year of the nation and for the signing of the Declaration of Independence, was for those who carried the fight for independence forward a year of all-too-few victories, of sustained suffering, disease, hunger, desertion, cowardice, disillusionment, defeat, terrible discouragement, and fear, as they would never forget, but also of phenomenal courage and bedrock devotion to country, and that, too they would never forget.

Yes, this is a dangerous time. Yes, this is a time full of shadows and fear. But we have been through worse before and we have faced more difficult days before. We have shown courage and determination, and skillful and inventive and courageous and committed responses to crisis before.

It was an utterly phenomenal achievement.

My strong feeling is that we must learn more about how we learn. I'm convinced that we learn by struggling to find the solution to a problem on our own with some guidance, but getting in and getting our hands dirty and working it.