The walls between old allies on either side of the Atlantic cannot stand. The walls between the countries with the most and those with the least cannot stand. The walls between races and tribes; natives and immigrants; Christian and Muslim and Jew cannot stand. These now are the walls we must tear down. We know they have fallen before.
Life and love generate effort, but effort will not generate them. Faith-in life, in other people, and in oneself-is the attitude of allowing the spontaneous to be spontaneous, in its own way and in its own time.
For a person who grew up in the '30s and '40s in the segregated South, with so many doors closed without explanation to me, libraries and books said, 'Here I am, read me.' Over time I have learned I am at my best around books.
The problem comes up because we ask the question in the wrong way. We supposed that solids were one thing and space quite another, or just nothing whatever. Then it appeared that space was no mere nothing, because solids couldn't do without it. But the mistake in the beginning was to think of solids and space as two different things, instead of as two aspects of the same thing. The point is that they are different but inseparable, like the front end and the rear end of a cat. Cut them apart, and the cat dies.
I know my country has not perfected itself. At times, we've struggled to keep the promise of liberty and equality for all of our people. We've made our share of mistakes, and there are times when our actions around the world have not lived up to our best intentions.