Isn't it sad to go to your grave without ever wondering why you were born? Who with such a thought would not spring from bed eager to resume discovering the world and rejoicing to be part of it?
The happiness of the creature consists in rejoicing in God by which also God is magnified and exalted.
Rejoicing in our joy not suffering over our suffering makes someone a friend.
Actions are right in proportion as they tend to promote happiness wrong as they tend to produce the reverse of happiness. By happiness is intended pleasure and the absence of pain.