“Heraclitus would shed tears whenever he went out in public – Democritus laughed. One saw the whole as a parade of miseries, the other of follies. And so, we should take a lighter view of things and bear them with an easy spirit, for it is more human to laugh at life than to lament it.” Seneca, On Tranquility of Mind.
Laughter is the best medicine. It’s important to take a step back and see the amusing things in life around us, including when we make little mistakes that are of no real lasting significance (such as putting the TV remote in the fridge or misplacing your house keys and finding them in the washing machine). Don’t beat yourself up. Have a laugh instead. Happiness is the one contagion you’ll be happy to be infected with.