• Part XIV. By the end of this part, Sellars has used the ideas about the language of theory from part XIII to lay the groundwork for his account of thoughts and impressions. The sort of account he offers of our use of vocabulary for the mental has has sometimes been referred to as the "'theory' theory." Think about what might lie behind this label. (Although Sellars describes his view as "behavioristic," the term "behaviorism" would now be used more often for the sort of position he describes as "unduly restrictive" at the end of §54, p. 265.)

• Part XV. Here Sellars recounts the invention of the language of thoughts by the culture hero Jones, who he introduced in §53. Notice especially the account in §59 of the first person use of this language in a reporting role.