In 1898, Edward Thorndike introduced the Law of Effect, a foundational principle in psychology that states behaviours followed by satisfying consequences are more likely to be repeated, while those followed by unpleasant outcomes are less likely to recur. This insight emerged from his experiments with cats in puzzle boxes, where he observed that successful actions leading to rewards were gradually stamped into behaviour. The Law of Effect has profound significance for cognitive psychology, as it laid the groundwork for understanding how learning, motivation, and decision-making are shaped by consequences. Beyond the lab, this principle carries powerful implications for personal development and wellbeing: by consciously reinforcing positive habits with rewarding outcomes, such as a sense of accomplishment or praise, we can reshape our behaviours, cultivate growth, and design lives rooted in intentional, adaptive learning. Thorndike’s early work reminds us that change is not just possible, but inevitable, when we align our actions with meaningful rewards. This principle is captured in its highest expression by David when he says, "Oh, taste and see that the Lord is good; Blessed is the man who trusts in Him!" (Psalm 34:8).