Achievement of your happiness is the only moral purpose of your life,
and that happiness,
not pain or mindless self-indulgence,
the proof of your moral integrity,
since it is the proof and the result
your loyalty to the achievement of your values.
Ayn Rand born Alisa Zinov’yevna Rosenbaum;
She is known for her two best-selling novels,
for developing a philosophical system she called Objectivism.