Via the New Inquiry, from the Oberlin College Commencement Address in 1965:
I’m sure that you have read that arresting little story from the pen of Washington Irving entitled Rip Van Winkle. The thing that we usually remember is that Rip Van Winkle slept 20 years. But there is another point in that story that is almost always completely overlooked: he slept through a revolution. When Rip [awoke and] looked up at the picture of George Washington, he was completely lost; he knew not who he was.
There are all too many people who, in some great period of social change, fail to achieve the new mental outlooks that the new situation demands. There is nothing more tragic than to sleep through a revolution. There can be no gainsaying of the fact that a great revolution is taking place in our world today. It is a social revolution, sweeping away the old order of colonialism. And in our own nation it is sweeping away the old order of slavery and racial segregation. The wind of change is blowing, and we see in our day and our age a significant development.
Victor Hugo said on one occasion that there is nothing more powerful in all the world than an idea whose time has come. In a real sense, the idea whose time has come today is the idea of freedom and human dignity. Wherever men are assembled today, the cry is always the same, ‘We want to be free.’ And so we see in our own world a revolution of rising expectations. The great challenge facing every individual graduating today is to remain awake through this social revolution.”