"We must love one another, yes, yes, that's all true enough, but nothing says we have to like each other. It may be the very recognition of all men as our brothers that accounts for the sibling rivalry, and even enmity, we have toward so many of them."

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It is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be. This, in turn, means that our statesmen, our businessmen, our every man must take on a science fictional way of thinking.

— Isaac Asimov