... a human is a real bipedal life form of mid-range intelligence, living a largely deluded existence on a small water-logged planet in a very lonely corner of the universe.
-- The narrator (Preface (An Illogical Hope In The Face Of Overwhelming Adversity) )

Importance: Because the narrative is aimed at non-humans living in a far away area of the universe, a description of humans is deemed necessary. He is, particularly, described in relation to the audience, with it being implied that he is far more intelligent and enlightened than humans are.

I was a forty-three-year-old newborn on planet Earth."
-- The narrator (The Man I Was Not)

Importance: The quote shows how utterly unprepared and ill equipped the alien being is for life as a human. He will automatically be presumed to be a competent human being in the middle of his lifespan but in fact knows absolutely nothing about the world into which he has come.

This was, I would later realise, a planet of things wrapped inside things. Food inside wrappers. Bodies...
-- The narrator (Texaco)