There are mysterious agencies of the human mind which, like roving gases, travel the world, causing pain and mutilation, without their owners having … - Iris Murdoch

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There are mysterious agencies of the human mind which, like roving gases, travel the world, causing pain and mutilation, without their owners having any full awareness, or even any awareness at all, of the strength and the whereabouts of these exhalations... So it is that we can be terrors to each other, and people in lonely rooms suffer humiliation and even damage because of others in whose consciousness perhaps they scarcely figure at all.