Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
HAPPINESS, HAPPINESS IS THE KEY TO SUCCESS
Love is the master key that opens the gates of happiness.
HAPPINESS, LOVE IS THE MASTER KEY
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
Friendship improves happiness and abates misery, by the doubling of our joy and the dividing of our grief.
HAPPINESS, FRIENDSHIP IMPROVES HAPPINESS
The word 'happiness' would lose its meaning if it were not balanced by sadness.
HAPPINESS, BALANCED BY SADNESS