Know Yourself, Control Yourself — Tao Te Ching

Lao Tzu opens with a chain of reversals that reset how we measure intelligence and strength. He who knows other men is discerning; he who knows himself is intelligent. He who overcomes others is strong; he who overcomes himself is mighty. Reading people skillfully is useful, but self-knowledge ranks higher. Outward dominance is easier than mastering your own impulses.

Then he turns to wealth and will. He who is satisfied with his lot is rich; he who goes on acting with energy has a firm will. Contentment is not passivity. Lao Tzu pairs satisfaction with steady action, not endless chasing. You can be rich in what you already hold and still move with resolve when something truly requires effort.

He closes with endurance and legacy. He who does not fail in the requirements of his position continues long; he who dies and yet does not perish has longevity. Fulfilling your role without constant failure outlasts dramatic bursts of force. Lasting influence survives the person who built it.