Isabel Boyer Gillies (born February 9, 1970) is an American author and actress. She played Kathy Stabler, Elliot Stabler's wife in Law & Order: Special Victims Unit. Her memoir Happens Every Day was a New York Times bestseller, and her most recent book is Cozy.
The belief that unhappiness is selfless and happiness is selfish is misguided. It's more selfless to act happy. It takes energy, generosity, and discipline to be unfailingly lighthearted, yet everyone takes the happy person for granted. No one is careful of his feelings or tries to keep his spirits high. He seems self-sufficient; he becomes a cushion for others. And because happiness seems unforced, that person usually gets no credit.