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What is necessary to change a person is to change his awareness of himself.
We think not in isolated ideas, but in continuous streams of purpose-directed activity.
解释:先前所使用的,现在或许要抛弃。现在要抛弃的,将来或许会用到。
经济学家的理想角色是澄清社会面临的替代方案,而不是为社会做出选择。