“The happiness of the bee and the dolphin is to exist. For man it is to know that and to wonder at it”
I remember hearing a speaker suggest that Dolphins were an ancient cousin of humans. Unlike humans that remained on land Dolphins returned to the sea where food was abundant. With their needs easily met they then have the luxury of spending their life in play.
It reminds me of something I was told as a child.
“Find three hobbies. One to relax. One for fun and one to earn a living from”.
These sentiments line up with my view on human intelligence. Nobody likes to work, but many do regardless. So intelligence can be found in anyone who has found a way to play their way through life. If you are mindlessly trudging to a job you hate perhaps your estimation of your own intelligence is a bit off.