"Reste fidèle à tes valeurs quel qu'en soit le prix"

Simplified Meaning:

When you hold on to your beliefs and what's important to you, even if it's difficult or people disagree with you, you are staying true to your values. For example, imagine you believe in honesty. One day, you find a wallet on the street with money in it. You could keep the money and no one would know, but if honesty is very important to you, you would return the wallet because that's what you believe is right. This can apply to many areas of life, like when you are at work and your boss asks you to lie to a client. Even if saying no might get you into trouble, being honest might be more important to you than avoiding the trouble. It shows that sometimes doing the right thing according to your beliefs can be hard, but it's important for being true to yourself. By sticking to your principles, you can feel good about your decisions and stay confident in who you are. This makes you a person of integrity, and in the long run, people respect and trust those who are consistent and principled.