Sophrosyne | Sophrosyne (Greek: σωφροσύνη) is a Greek philosophical term etymologically meaning healthy-mindedness and from there self-control or moderation guided by knowledge and balance. Roman poet Juvenal later interpreted sophrosyne 'mens sana in corpore sano' ("a healthy mind in a healthy body"). —Wikipedia
Amen! Let's start with clean, running water inside our homes, heat in the winter, air in the summer, electricity, lights at night, a warm coat, food when we're hungry. All this should be enough to make us happy!