"Je ne mens jamais. Je crois tout ce que je dis, donc ce n'est pas un mensonge."

Simplified Meaning:

When a person says they never lie because they believe everything they say, it means they are convinced that what they say is true, even if it might not be. Imagine someone who fully believes in something, like thinking the weather will be sunny tomorrow without checking the forecast. If they tell a friend it'll be sunny and it rains instead, they didn't lie – they honestly believed it would be sunny. This thinking shows that a person's truth comes from their beliefs and perspective. For example, in history, people once believed the earth was flat. When they said it was flat, they weren't lying. They simply shared what they thought was true at that time. In everyday life, this teaches us to be aware that what we believe as truth might not always be right. It's important to be open-minded and check our facts. Before stating something as a fact, we should question if we've really got it right. This way, we can communicate clearer and avoid spreading incorrect information, even if done without ill intent.