Acquiring virtues is like learning a skill like playing the piano. Just as nobody is born knowing how to play the piano but can learn, nobody is born virtuous but can develop virtue. You don't learn to play the piano just by reading books; you have to practice. Similarly, studying virtue isn't enough; you have to put it into action until it is a habit. At first, you follow rules without fully understanding, like playing the piano without grasping the music theory. With practice in playing and in acting virtuously, you can improvise, and understand why certain actions are right or wrong.