“The final frontier is perhaps the most difficult, but it's also the most important — and that's the frontier of the human spirit. For too long, people have allowed differences on the surface — differences of color, ethnicity, and gender — to tear apart the common bonds they share. And the human spirit suffers as a result.
Imagine a world in which we saw beyond the lines that divide us, and celebrated our differences, instead of hiding from them. Imagine a world in which we finally recognized that, fundamentally, we are all the same. And imagine if we allowed that new understanding to build relations between people and between nations.”

Twenty Year Vision for America (2004)
Context: As with science and technology, there could be a dark side of globalization, in which progress for some means poverty for others, as jobs and opportunities ebb and flow, securities and currencies fluctuate in value, and the tension between private profit and public good persists. But surely these are risks that we can manage in a world with an America more attuned to its larger purpose and responsibilities.
The final frontier is perhaps the most difficult, but it's also the most important — and that's the frontier of the human spirit. For too long, people have allowed differences on the surface — differences of color, ethnicity, and gender — to tear apart the common bonds they share. And the human spirit suffers as a result.
Imagine a world in which we saw beyond the lines that divide us, and celebrated our differences, instead of hiding from them. Imagine a world in which we finally recognized that, fundamentally, we are all the same. And imagine if we allowed that new understanding to build relations between people and between nations.
Our goal for the next twenty years should be to finally recognize that our differences are our greatest strength. That's true not only here in America, but in all parts of the world, where we've allowed historic rifts to poison the well of opportunity. They've arisen from the natural prides and passion of humanity. Only when we recognize that — when we respect the human spirit — will we be a great nation and a great world. These are the steps we must take in the next twenty years, as we reach out for the newest frontiers.