"Lo más difícil de explicar es lo que resulta evidentemente claro que todos han decidido no ver"

Simplified Meaning:

Imagine you are in a classroom, and there’s a big, messy pile of trash in the corner. Everyone walks by it every day, but no one talks about it or cleans it up. When you try to point it out, everyone pretends like it’s not there or says it’s not a problem. Explaining something so obvious becomes very difficult because everyone has chosen to ignore it. This happens in real life all the time. For example, think about pollution. The impact and dangers of pollution are very clear, but many people and companies choose not to take action or even acknowledge it. If you try to highlight it, it feels like arguing about something invisible because people act like they don’t see the problem. The advice here is to be aware of things that are obvious but ignored. Don’t be afraid to point them out, even if others choose to overlook them. It can help bring attention to important issues and encourage others to face reality.