Everyone chases after happiness, not noticing that happiness is right at their heels.
Happiness is beneficial for the body, but it is grief that develops the powers of the mind.
HAPPINESS, GRIEF THAT DEVELOPS THE POWER OF THE MIND
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 is not a reward - it is a consequence. Suffering is not a punishment - it is a result.
HAPPINESS, SUFFERING IS NOT A PUNISHMENT