Meaning of My happiness is not the means to any end. It is the end. It is its own goal. It is its own purpose. Quote by Ayn Rand.
If destruction be our lot, we must ourselves be its author and finisher. As a nation of freemen, we must live through all time, or die by suicide.
To be stupid, and selfish, and to have good health are the three requirements for happiness – though if stupidity is lacking, the others are useless.
Keep in mind that the reason you know you can be good to others is only because you’ve taken strides to be better for and to yourself.