@bymuseum: Mona Lisa (c. 1503–1519) By Leonardo da Vinci 📍 Musée du Louvre, Paris You know the smile. But look at how Leonardo painted it. There is no hard line at the corners of her mouth. The lips fade softly into the cheeks, making the expression difficult to fix. Look directly at the mouth, and the smile can seem restrained. Look away, and it feels stronger. The painting never changes. Your perception does. Her folded hands stay calm. Her face stays uncertain. Behind her, the landscape feels strange, hazy, and unstable. Leonardo did not give us one clear emotion. He left us searching for one. Why does her smile change when the painting never does? 👉 Follow @bymuseum for vivid stories and hidden meanings in classical art.