“The most certain sign of wisdom is cheerfulness.”Michel de Montaigne · Eseuri · 1580 · I, 14
True wisdom is recognized by constant joy, not by gravity or melancholy.
Montaigne rejects the image of the gloomy sage. For him, whoever understands life no longer lets trifles disturb them and lives in a state of serenity. Cheerfulness is not superficiality, but the sign of a mind that has accepted life's limits and absurdities. For instance, someone who laughs at their own mistakes instead of frowning shows wisdom.
Why it matters It reminds us that happiness is not the enemy of deep thinking, but its companion. In a culture of stress, it's an invitation to find joy in knowledge.