“According to current research, in the determination of a person's level of happiness, genetics accounts for about 50 percent; life circumstances, such as age, gender, ethnicity, marital status, income, health, occupation, and religious affiliation, account for about 10 to 20 percent; and the remainder is a product of how a person thinks and acts.”

“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.”

“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.”

“Of course it's not enough to sit around wanting to be happy; you must make the effort to take steps toward happiness by acting with more love, finding work you enjoy, and all the rest. But for me, asking myself whether I was happy had been a crucial step toward cultivating my happiness more wisely through my actions. Also, only through recognizing my happiness did I really appreciate it. Happiness depends partly on external circumstances, and it also depends on how you view those circumstances.-Gretchen Rubin”

“To be happy, I need to think about feeling good, feeling bad, and feeling right.”

“The First Splendid Truth: To be happy, I need to think about feeling good, feeling bad, and feeling right, in an atmosphere of growth.”

“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.”