Is the author implying that, on a 'Referent' and 'Thought and Language' Grid, 'Referent" ("I" as Subject) as a content of the 'Thought and Language' ("My pants are on fire") calls for action enablement. Whereas 'Referent' ("Smith" as Subject) as content of the 'Thought and Language' ("Smith's pants are on fire") is not self-locating, for being non-first personal thought?
== Two Lines of Thinking ==
(1) Smith's pants are on fire. He should put it out.
(2) Smith's pants are on fire. He should put it out. I am Smith. Therefore, my pants are on fire. Therefore, I should put it out.
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unless, I come to believe 'I = Smith', only then it calls for action.
Unless and until, 'Smith' becomes first-personal in the mind, it is unable to self-locate.