I use the term happiness to refer to the experience of joy, contentment, or positive well-being, combined with a sense that one's life is good, meaningful, and worthwhile.
Sonja LyubomirskyThe practice of gratitude is incompatible with negative emotions and may actually diminish or deter such feelings as anger, bitterness, and greed.
Sonja LyubomirskyLast but not least, the happiest people do have their share of stresses, crises, and even tragedies. They may become just as distressed and emotional in such circumstances as you or I, but their secret weapon is the poise and strength they show in coping in the face of challenge.
Sonja Lyubomirsky