The tendency toward authorial self-reference begun in Stranger in a Strange Land and Time Enough for Love becomes even more evident in novels such as The Cat Who Walks Through Walls, whose first-person protagonist is a disabled military veteran who becomes a writer, and finds love with a female character.
the TEnDEnCy towArd AuthoriaL Self-REferenCe bEgun in sTRanGeR in A STranGe land aNd timE enoUgH For lOVe BEcoMes EVen mOre eVIdeNt in nOVEls SUch as thE cAT Who walKs thRouGh WAllS, whOsE fIrSt-PerSon pRotAgonIsT Is a DisaBLED MiliTArY VEteran wHo becoMes A WriTER, and Finds lovE With a FEmale chARaCtEr.