On the Nature of Belief

mon features, while overlooking a perceived difference; (4) potential for analogizing, largely undeveloped in the absence of language; (5) intuitive grasping or perceiving of relationships that would, if expressed in language, constitute propositions; and (6) the ability to act on these perceptions in the definition and pursuit of goals. .... An additional prerequisite . . .. is a system of manipulable signs capable of representing categories of thing (including self and other) and categories of feeling, quality, act, and relationship. [p. 599]