Hi, everybody. I'm at Millennium Steel in Princeton, Indiana, to have a town hall with workers on National Manufacturing Day. Because in many ways, manufacturing is the quintessential middle-class

Talk very briefly about innovation cycles, things that grow, have a lot of activity; they die out when they're replaced by something else. 简短地谈一下发明创造的周期，周期发展时会衍生许多活动，当这些活动被其他活动取代，此周期就灭亡了。 These things

June 20, 2007 2:39 P.M. EDT THE PRESIDENT: Welcome. I'm glad you're here. America is a nation that leads the world in science and technology. Our innovative spirit is making possible incredible advanc

Now, as any scientist will tell you, it’s often a challenge to commercialize research. You come up with a great idea, but moving that new discovery from theory to practice or from the lab to the

Our Government must at the same time be both competent and compassionate. 我们的政府必须同时兼备能力和同情心这两种东西。 We have already found a high degree of personal liberty, and we are now struggling to enhance equality