One of the things that you see ancient philosophers and contemporary scientists agree on is that strong relationships are a key to happiness, maybe the key to happiness. People who have more strong relationships in their lives just feel happier.
Gretchen RubinThe 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.
Gretchen Rubin