”The three grand essentials to happiness are something to do, something to love, and something to hope for.” Joseph Addison
”Happiness is not a possession to be prized. It is a quality of thought, a state of mind.” Daphne Du Maurier
”Work and live to serve others, to leave the world a little better than you found it and garner for yourself as much peace of mind as you can. This is happiness.” David Sarnoff
“There is no duty we so much underrate as the duty of being happy. By being happy we sow anonymous benefits upon the world.” Robert Louis Stevenson