Positive and negative reinforcement, concepts central to B. F. Skinner’s operant conditioning framework (1938; 1953), explain how consequences shape behaviour by either increasing its likelihood through the addition of something rewarding (positive reinforcement) or the removal of something aversive (negative reinforcement), and together they form a powerful engine of motivation by teaching individuals which actions lead to desirable outcomes and which help avoid discomfort; this insight, rooted in early behaviourist work by Edward L. Thorndike (Law of Effect, 1898) and later expanded by Skinner and contemporaries such as Clark L. Hull (drive reduction theory, 1943), has profound implications for personal wellbeing because it helps people intentionally design environments that reward healthy habits and extinguish unhelpful ones, while at the societal level it informs effective educational systems, workplace practices, and public-health interventions that build flourishing, cooperative communities. The psychology of reinforcement offers us powerful tools with which we may shape society for the better. B.F. Skinner knew this and went so far as to pen a utopian novel, ‘Walden Two’, in which he described such a society. Skinner’s novel, like many utopias, begs the question, ‘What is good?’ The Christian revelation provides not merely an answer, but the power to live the answer. Through personal relationship with God, Jesus’ disciples are empowered by the Holy Spirit to live as ambassadors of Heaven on earth (Proverbs 13:17).