I do believe that if you haven't learnt about sadness, you cannot appreciate happiness.
HAPPINESS, BELIEVE THAT IF YOU HAVEN'T LEARN ABOUT SADNESS
Happiness lies in the joy of achievement and the thrill of creative effort.
HAPPINESS, HAPPINESS LIES IN THE JOY OF ACHIEVEMENT
Happiness is the reward we get for living to the highest right we know.
HAPPINESS, HAPPINESS IS THE REWARD
Be more dedicated to making solid achievements than in running after swift but synthetic happiness.
HAPPINESS, DEDICATED TO MAKING SOLID ACHIEVEMENTS