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I'm really disturbed by the degree to which I don't hear people saying, "Are we leaving the world better than we found it?" I think we are a generation that perhaps could not answer in the affirmative, and it is the evasion of the larger responsibility of being only one generation in what one hopes will be an infinite series of fruitful generations. There is a selfishness in refusing to understand that we are passing through; others will come, and they deserve certain courtesies and certain considerations from us.