Virusses, war, climate, inflation, poverty and loneliness make people feel insecure. In these troubled times, there is more interest than ever for what is truly important in life: happiness, hope and love. What does science teach us today? Are we still allowed to strive towards happiness? And how do we do that? Leo Bormans asked the same question over and over again to a hundred professors all over the world: established names and young up-and-comers. Every scientist briefly summarises their ...