Violence ever defeats its own ends. Where you cannot drive you can always persuade. A gentle word, a kind look, a good-natured smile can work wonders and accomplish miracles. There is a secret pride in every human heart that revolts at tyranny. You may order and drive an individual, but you cannot make him respect you.
I don’t think anyone would question the fact that if you were going to hire an engineer to build a bridge for you, you would hope that he was up to date on all engineering factors and formulas and therein so on and so forth and the more knowledge he had about his craft or his skill, the better the eventual his bridge would be. In every area of life, we take that as just a basic gut assumption; that the more information you have the better decision you make, the better bridge you can build, the better building you can create or whatever.
Happiness is apparently no different. The more you know about it, the better able you are to find it.