I don't quite understand how simple-mindedness is a problem. It's actually a positive trait, in my opinion. It's hard to find things to worry about and you enjoy simple pleasures in life. Easy! "Frugality is one of the most beautiful and joyful words in the English language, and yet one that we are culturally cut off from understanding and enjoying. The consumption society has made us feel that happiness lies in having things, and has failed to teach us the happiness of not having things." - Elise Boulding