"Il faut être prêt à souffrir pour grandir."

Simplified Meaning:

For people to improve or become better, they often need to go through hard times or challenges. Think about a student learning a new skill like playing the piano. Learning to play well involves practicing a lot, making mistakes, and feeling frustrated when things don't go right. This struggle helps the student learn and become a better musician. In life, facing difficulties like overcoming a fear, starting a new job, or recovering from a setback can feel tough and stressful. However, these experiences teach valuable lessons and build resilience. By accepting and pushing through these hard times, people can grow stronger, more skilled, and more confident. So, when you face a challenge, remember that it's a part of growing and becoming your best self.