". . . That Thou Art Mindful of Him" (also signed as "That Thou Art Mindful of Him") is a science fiction short story by American writer Isaac Asimov, which he intended to be an "ultimate" probe into the subtleties of his Three Laws of Robotics. The story first appeared in the May 1974 issue of Fantasy and Science Fiction and the 1974 anthology Final Stage, edited by Edward L. Ferman and Barry N. Malzberg. It was collected in The Bicentennial Man and Other Stories (1976) and The Complete Robot (1982).