"Parfois, il faut être un peu méchant parce que cela laisse entrer la lumière."
— Neil Gaiman
Simplified Meaning:
Sometimes, behaving in a way that isn't entirely nice can help make things better in the long run. Think about someone who needs to stand up to a bully — they might need to be firm and tough, which might seem mean, but it stops the bully and makes things better for everyone. Or imagine making an honest, but difficult decision at work that disappoints some people but ensures long-term success for the team. Being a little "wicked" in these cases isn’t about doing bad things, but about making tough choices that help create positive changes, like opening a window to let in fresh air. This means that occasionally doing something seen as strict or not-so-nice can bring about very good results. So, it teaches that sometimes, for the greater good, you need to be strong and make hard decisions.