"Je ne suis pas le meilleur, je suis le double meilleur."

Simplified Meaning:

This saying means that the person believes they are not just good at something, but exceptionally good, even better than the best. Think of it like someone who wins a championship in a sport, and then continues to win again and again, proving they are the best many times over. Imagine a soccer player who not only wins an important tournament but then also wins the award for the best player in that tournament. The player isn't just great for winning the tournament, but double great for also being the standout star. In everyday life, this idea encourages people to strive not only to meet goals but to exceed them, to be so good that they stand out twice over. For example, if someone is studying for an exam, they should aim to understand the material so well that they can teach it to others, not just pass the test. This way, they become exceptional at their subject.