Always leave something to wish for otherwise you will be miserable from your very happiness.
Happiness does not come from doing easy work but from the afterglow of satisfaction that comes after the achievement of a difficult task that demanded our best.
HAPPINESS, HAPPINESS DOES NOT COME FROM DOING EASY WORK
Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.
HAPPINESS, HOW WE MAKE OURSELVES HAPPY
The true secret of happiness lies in taking a genuine interest in all the details of daily life.