Suffering for the sake of moral strengthening is one important theme that permeates throughout the sweat lodge, Bucko explained in his book.

BBC: The origins of bathhouse culture around the world

Eckhard Cordes, Cchaiman and chief executive of the German retailer METRO, set the early morning tone at the leadership and trust panel, urging business leaders to help set the moral agenda, echoing an emerging theme across sessions, that sustainable behavior is good for both companies and society.

FORBES: Day Two At Davos

More broadly, a central theme in her work is the proposition that a particular conception of the good life is itself a moral value, and that that from this value, certain libertarian moral and political conclusions follow.

FORBES: What Was Ayn Rand Wrong About?