What are the secrets to achieving authentic happiness? What activities and experiences lead to true flourishing? And why does happiness often feel so out of reach? Recent probing into these questions has found that the answers come not just from contemporary scientific studies in psychology and neuroscience but also from insights that philosophers and thinkers had centuries ago. This conversation explores insights from major thinkers — such as Plato on self-harmony, Aristotle on habit, Epictetus on stoic virtues, and Buddha on the power of presence — and sheds light on the modern science behind these ancient discoveries.