The master key to greatness, success, and fulfillment across all domains of life. Sol reveals how the principle of low time preference—consistently choosing sustainable, compounding actions over short-term pleasures—creates the invisible architecture supporting the greatest achievements. From the Stanford Marshmallow Experiment to wealth building, from health choices to relationship building, this lesson explores the science of intertemporal choices and provides a comprehensive blueprint for cultivating patience, foresight, and strategic thinking through vision, habits, environment design, and mental mastery.