If you want to be happy, be.
Leo Tolstoy

True happiness comes from the joy of deeds well done, the zest of creating things new.
Antoine de Saint-Exupery

Happiness is not something ready made. It comes from your own actions.
Dalai Lama

Whether you think you can, or you think you can’t – you’re right.
Henry Ford

Achievement of your happiness is the only moral purpose of your life, and that happiness, not pain or mindless self-indulgence, is the proof of your moral integrity, since it is the proof and the result of your loyalty to the achievement of your values.
Ayn Rand