Quotes from book
Between Planets

Between Planets is a juvenile science fiction novel by American writer Robert A. Heinlein, originally serialized in Blue Book magazine in 1951 as "Planets in Combat". It was published in hardcover that year by Scribner's as part of the Heinlein juveniles.

“He considered horoscopes as silly as spectacles on a cow.”
Source: Between Planets (1951), Chapter 4, “The Glory Road” (p. 43)

“Don, have you been dealing with a booklegger?”
Source: Between Planets (1951), Chapter 1, “New Mexico” (p. 10) - Mr. Reeves, asking the main character why he was in possession of a forbidden book discussing interplanetary politics.