In The Conquest of Happiness, first published by Liveright in 1930, iconoclastic philosopher Bertrand Russell attempted to diagnose the myriad causes of unhappiness in modern life and chart a path out of the seemingly inescapable malaise so prevalent even in safe and prosperous Western societies. More than eighty years later, Russell's wisdom remains as true as it was on its initial release. Eschewing guilt-based morality, Russell lays out a rationalist...