ABSTRACT
The proper analysis of belief in the existence of other minds, and the question of how it can be justified, have been far less thoroughly discussed by philosophers than the corresponding questions about matter and our alleged knowledge of it. The position of a philosopher with no one but himself to lecture to, and no hope of an audience, would be so tragic that the human mind naturally shrinks from contemplating such a possibility. A mind, in the sense of an Empirical Self, consists of a number of simultaneous and successive mental events united into a whole of a certain characteristic structure. The perception of another body and of certain movements or modifications of it is essential to extraspection; and so one part of the objective constituent of any extraspective situation is the visual and other sensa by which the foreign body appears to us in perception.
