Unpopular speech is absolutely vital to the health of our nation.

There are tens of thousands of charities and hundreds of thousands, getting towards millions, of people now using it. And when I flip through it, I'm just blown away by people.

There are so many people who are conscientious and caring about others. I've spent time working in countries where I really noticed the absence of civic concern, care for other people. I've been in other countries where I feel a palpable, almost tooth-and-claw attitude between people - Machiavellian, me and mine. And you can take for granted being here, with all the bloviating and the media, on a day-to-day level, people in this country are really pretty concerned for each other.

Even my wife and two of my children are in "Leaves of Grass". Because I love the source material so much, it was really easy to write and an utter delight to get to direct because I had people like Edward [Norton] elevating the material and surprising me in their interpretations of all of this stuff that's so close to me.

As an actor, if you step to the side and you look at [Thornton's performance] technically, and you try to imagine doing what he was doing, most people would panic. Most people would be on the set, and they would be panicking, going, "I'm not doing anything!" All the ham instincts in you would be screaming, "You've got to indicate something here." And it's beautiful, in a way. And so I appreciate, even as an audience member, the courage that it takes to be... frankly, to be subtle.

A lot of people ask, "What do you pull on in your own life from your character?" In all honesty, it's not something that really works that way for me. I tend to look at these things as an imaginative process and a challenge of imagination and empathy, to some degree. I get much more out of meeting people who have lived these lives than I do digging around in my own limited experiences.

When I was very small, I had that first-time-you-see-a-play experience, which immediately made me want to act, because it seemed like this incredible outlet for something I was already doing fairly compulsively anyway, which was putting on hats and costumes and doing funny voices. It was a very natural compulsion for me.