“Another study suggested that getting one extra hour of sleep each night would do more for a person's happiness than getting a $60,000 raise.”

“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.”

“Studies show that in a phenomenon called "emotional contagion," we unconsciously catch emotions from other people--whether good moods or bad ones. Taking the time to be silly means that we're infecting one another with good cheer, and people who enjoy silliness are one third more likely to be happy.”

“What you do everyday matters more than what you do once in a while.”

“Studies show that each common interest between people boosts the chances of a lasting relationship and also brings about a 2 percent increase in life satisfaction.”

“What you do every day matters more than what you do once in a while.”

“One of the best ways to make yourself happy is to make other people happy. One of the best ways to make other people happy is to be happy yourself.”