The Most Intelligent Species There Ever Was on Earth?

I think they would see us as what we are pretty clever primates that have done quite a bit with our limited intelligence, but as Darwin famously said we still bear the stamp of our lowly origins. There's nothing we would do that would impress them so That species visiting earth on the rumor that intelligent life had surfaced after seeing our rampant irrationalities. Those aliens will run home and say there is no sign of intelligent life on earth It's a cosmic perspective offered for your consideration.