I do believe that if you haven't learnt about sadness, you cannot appreciate happiness.

Satisfaction of one's curiosity is one of the greatest sources of happiness in life.

Remember happiness doesn't depend upon who you are or what you have it depends solely on what you think.

Most folks are as happy as they make up their minds to be.

All happiness or unhappiness solely depends upon the quality of the object to which we are attached by love.

Never make friends with people who are above or below you in status. Such friendships will never give you any happiness.

The secret to happiness is freedom... And the secret to freedom is courage.

Happiness is not an ideal of reason, but of imagination.

Life does not agree with philosophy: There is no happiness that is not idleness, and only what is useless is pleasurable.

Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.