Perhaps the rediscovery of our humanity, and the potential of the human spirit which we have read about in legends of older civilizations, or in accounts of solitary mystics, or in tales of science fiction writers - perhaps this will constitute the true revolution of the future. The new frontier lies not beyond the planets but within each one of us.
In reality, though, the first thing to ask of history is that it should point out to us the paths of liberty. The great lesson to draw from revolutions is not that they devour humanity but rather that tyranny never fails to generate them.