600–500 BCE In India, Gautama Buddha teaches that suffering is caused by desire, and can be alleviated by releasing desire.
458 BCE Ancient Greek dramatist Aeschylus explores the idea that “wisdom comes alone through suffering.”
1950s French existentialist philosophers, such as Jean-Paul Sartre, say our lives do not have a God-given purpose; we must find it for ourselves.
2003 Martin Seligman says a “full life” encompasses pleasure, engagement (flow), and meaning.
2007 US psychologist Dan Gilbert explains that people are unhappy because of the way they think about happiness.
Viennese psychiatrist Viktor Frankl ...