"Heinlein has done more to harm SF than has any other writer, I think - with the possible exception of George O. Smith. The dialogue in Stranger in a Strange Land has to be read to be believed. 'Give the little lady a box of cigars!' a character cries, meaning that the girl has said something that is correct. One wonders what the rejoinder would be if a truly inspired remark had to be answered, rather than a routine statement; it would probably burst the book's gizzard.
Philip K. Dick from "Will the Atomic Bomb Ever Be Perfected, and If So, What Becomes of Robert Heinlein?" (1966)