The last book I read was 108 speech of HM The King of Thailand, King Bhumibol Adulyadej.
This book is the only part of the speech on the main idea of the lifestyle he gave to his inhabitant to live happily on the basis sufficiency economy.
The speech which I like the most is sufficiency economy, he said “ when we stay in demand it has less greed, when it has less greed we will not exploit others.
Sufficiency may be have more or may have the luxury but not exploit others