 The move to thought, and thereafter to language, is perpetrated with the use of Wittgenstein’s famous idea that thoughts, and propositions, are pictures—“the picture is a model of reality” (TLP 2.12). Pictures are made up of elements that together constitute the picture. Each element represents an object, and the combination of elements in the picture represents the combination of objects in a state of affairs. The logical structure of the picture, whether in thought or in language, is isomorphic with the logical structure of the state of affairs which it pictures. More subtle is Wittgenstein’s insight that the possibility of this structure being shared by the picture (the thought, the proposition) and the state of affairs is the pictorial form. “That is how a picture is attached to reality; it reaches right out to it” (TLP 2.1511). This leads to an understanding of what the picture can picture; but also what it cannot—its own pictorial form.