Neither moral relations nor the moral law can swing in vacuo. Their only habitat can be a mind which feels them; and no world composed of merely physical facts can possibly be a world to which ethical propositions apply.
William JamesHappiness comes of the capacity to feel deeply, to enjoy simply, to think freely, to risk life, to be needed. which give happiness. Thomas Jefferson We never enjoy perfect happiness; our most fortunate successes are mingled with sadness; some anxieties always perplex the reality of our satisfaction.
William James