"There's no question that trade can be an act of war, and I think it's led to bad things like the attitudes it's brought out in the United States. We should be looking to trade with the rest of the world. We should do what we do best, and they should do what they do best. With eight countries possessing nuclear weapons, including a few I would call quite unstable, I don't think it's a great idea to design a world where a few countries say, "Haha, we've won" while other countries are envious. … The main thing is that trade should not be a weapon. The United States has become an incredibly important country starting from nothing 250 years ago — there's never been anything like it. And it's a big mistake when you have 7.5 billion people who don't like you very well and you have 300 million people crowing about how well they've done. I don't think it's right and I don't think it's wise. The more prosperous the rest of the world becomes, it won't be at our expense — the more prosperous we'll become and the safer we'll feel and your children will feel someday."