"Travaille sur toi-même plus que tu ne travailles sur ton travail"

Simplified Meaning:

Focusing on improving yourself is more crucial than only concentrating on your job tasks. It means that developing your own skills, learning, and personal growth will eventually make you better at any job you do. Imagine a chef; if they only follow recipes without learning new techniques or experimenting with flavors, their cooking may never improve. But if they spend time enhancing their skills, understanding different cuisines, and practicing regularly, they will become a much better chef overall. Similarly, if you work on becoming more knowledgeable, improving communication, or managing time well, not only will you perform better in any job, but you'll also be more adaptable and successful in various aspects of life. Self-improvement can lead to promotions, new opportunities, and a more fulfilling life, as you're constantly becoming a better version of yourself.