Intelligence, loyalty and friendship, the existence of God and souls, the unexpected benefits and harm of invention, tools as extensions of humanity, and more questions are often explored by Simak's robots, whom he uses as "surrogate humans"[4]. His robots begin as likable mechanical persons, but morph in surprising ways. Having achieved intelligence, robots move onto common themes such as, "Why are we here?" and "Do robots have souls"? Examples are the faithful butler Jenkins in City, the religious robot Hezekiel in A Choice of Gods, the frontier robots in Special Deliverance and A Heritage of Stars, and the monk-like robots in Project Pope who seek Heaven.
Simak's robot-awareness theme goes farthest in All the Traps of Earth. A 600-year-old robot, a family retainer who earned the name Richard Daniel, is considered chattel to be reprogrammed and lose all its memories. The robot runs away, hitches onto a spaceship, and passes through hyperspace unprotected. Daniel gains the ability to see and fix problems in anything - a ship, a robot, a human - telekinetically. Yet he's still drifting and hunted as chattel. Finally he stumbles on a frontier planet and finds a purpose, helping the pioneers as a doctor, a servant, a colonist, and a friend. And here Daniel achieves an epiphany: human beings are more clever than they know. Human-created robots set loose can become agents with para-human abilities that directly or indirectly benefit humanity. Thus do robots, and Mankind, escape "all the traps of earth".