True and not true.
If you do not have enough money, you will probably be miserable and then money will fix your problems.
But once you have enough money that you don't have existential worries anymore (what used to be called "Middle Class"), then more money does not make you more happy.
it's called the hedonic treadmill: https://en.wikipedia.org/wiki/Hedonic_treadmill
Great article as usual: I just love the idea of the hedonic treadmill and wanted to share it.