What this quote means

Before conquering the world, you must conquer yourself. Personal discipline is the foundation of all great achievements. In reading biographies of great men, one finds that their first victory was over their own weaknesses. This reminds us that self-mastery is the prerequisite for any external accomplishment.

How to apply it daily

Identify one habit that holds you back and replace it with a simple discipline you practice every morning, such as meditation or exercise.