- Julie Christie on Happiness
- Austin O'Malley on Happiness
- Don Marquis on Happiness
- Milan Kundera on Happiness
- Phillips Brooks on Happiness
- Robert Green Ingersoll on Happiness
- George Santayana on Happiness
- Joseph Barbara on Happiness
- Richard Bach on Happiness
- Joyce Grenfell on Happiness
- J. Donald Walters on Happiness
- Mahatma Gandhi on Happiness
- Bar Refaeli on Happiness
- Martin Yan on Happiness
- Billy Wilder on Happiness
- Johnny Carson on Happiness
- Prem Rawat on Happiness
- Garth Brooks on Happiness
- Julia Roberts on Happiness
- Oscar Levant on Happiness
- George William Curtis on Happiness
- Franklin D. Roosevelt on Happiness
- Marquis De Sade on Happiness
- Robert Frost on Happiness
- Elizabeth Stuart Phelps on Happiness
- Adam Smith on Happiness
- John Barrymore on Happiness
- Joseph Butler on Happiness
- Democritus on Happiness
- Pierre Corneille on Happiness
- Marcel Proust on Happiness
- Thomas Traherne on Happiness
- Andrei Platonov on Happiness
- George A. Smith on Happiness
- Eugenio Montale on Happiness
- Rosalia De Castro on Happiness
- William Cobbett on Happiness
- Charles Caleb Colton on Happiness
- Amy Lowell on Happiness
- Henry Drummond on Happiness
- Jean-Jacques Rousseau on Happiness
- Channing Pollock on Happiness
- Ambrose Bierce on Happiness
- George Burns on Happiness
- Robert Mapplethorpe on Happiness
- Friedrich Schiller on Happiness