"最好的外星智慧证明就是他们没有联系过我们"

Simplified Meaning:

Imagine you have a really messy neighbor who is always causing trouble and acting foolishly. You can see and hear all the chaos, and you decide that you don’t want to get involved because it’s better to keep your distance. The quote is saying that if there are intelligent beings on other planets, they might see all the problems and conflicts on Earth and choose to stay away from us. Just like the wise neighbor who avoids the noisy one, these smart aliens might think it's not a good idea to contact a world where people fight a lot and can't get along. Instead, they stay hidden and keep to themselves. This way, they avoid getting caught up in our mess. So, thinking about it this way, if aliens are really smart, they might have decided it's best not to contact us at all. This idea makes some people believe that the very fact we haven’t heard from them could be because they are intelligent enough to know better. If you want to apply this wisdom to your own life, sometimes it’s best to avoid getting involved in certain situations or with certain people if it might lead to trouble or chaos.