Researchers probed what psychologists call the ‘paradox of effort’ to learn how different people value work they could do in ...

If so, then how come people, and even animals, often prize things that require hard work for no additional payoff? Why is being hard-to-get a route to value? Anyone who has labored hard for ...

It’s hard and anxiety-filled most of the time ... held in his hand — and invisible forces became his life’s work. Some people go into careers of public service because somebody says ...