"Les gens voient généralement ce qu'ils cherchent et entendent ce qu'ils écoutent."

Simplified Meaning:

When we expect to find something, we are more likely to notice it, and the same goes for hearing things. For example, if you go into a situation believing that someone is angry at you, you might interpret their actions and words as proof of that anger, even if they aren't angry at all. This happens because we focus on the things that support our beliefs and overlook things that don't. Think about going to a party where you are hoping to meet friendly people. If you believe you'll find nice people, you likely will, because you're looking for positive interactions. On the other hand, if you expect people to be rude, you might interpret neutral behaviors as rudeness. This is a reminder to be aware of our expectations and perceptions. To use this idea in life, try to keep an open mind and not jump to conclusions based on your initial thoughts or fears. Being more open can help you understand situations and people better, avoiding misunderstandings and unnecessary conflicts.