‘Because unlike courage and wisdom, both of which imbued the community with their respective qualities while being properties of only a part of the community, self-discipline literally spans the whole octaval spread of the community, and makes the weakest, the strongest, and the ones in between all sing in unison, whatever criterion you choose in order to assess their relative strengths—intelligence, physical strength, numerical quantity, wealth, and so on. And the upshot is that we couldn’t go wrong if we claimed that self-discipline was this unanimity, a harmony between the naturally worse
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