„It is so easy to be unhappy. It is sufficient to think about sad things which have happened or could have happened. Furthermore, it is practical to be unhappy as well.You can let the other feel sorry for you and have a good reason not to strive – you are simply very unhappy.
There is a snag in happiness – you must intend to be happy. You must feel like struggling and achieving the state of happiness.
(B. Labbé, M. Puech)