In spite of our rather boastful talk about progress, and our pride in the gadgets of civilization, there is, I think, a growing suspicion — indeed, perhaps an uneasy certainty — that we have been sometimes a little too ingenious for our own good. . . . We are beginning to wonder whether our power to change the face of nature should not have been tempered with wisdom for our own good, and with a greater sense of responsibility for the welfare of generations to come.
Man . . . thinks of himself as a creator instead of a user, and this delusion is robbing him, not only of his natural heritage, but perhaps of his future.