År 1986 skrev Asimov en introduktion till Dicks berättelse Impostor för Isaac Asimov Presenterar The Great SF Stories # 15 (1953) , och kritiserade honom starkt för att använda droger:
I never met Philip Dick, but I heard that, at least early in his career, he experimented with what some people call “mind-expanding” drugs. I found that distasteful.
I sin självbiografi I. Asimov (skriven 1990, publicerad 1994) hänvisade han till Dick som en "superstjärna av science fiction":
Even in science fiction, awards keep proliferating. There is the Hugo award (given in ever increasing categories) and the Nebula award. In addition, there are awards in the names of dead superstars of science fiction; awards named for John Campbell, Philip Dick, Ted Sturgeon, and so on. Perhaps in time to come there will be an Isaac Asimov award.