In many ways, when you're a Nobel peace laureate, you have an obligation to humankind, to society.
Desmond TutuClimate change is the Everest of all problems, the thorniest challenge facing humankind.
Lewis Gordon PughI do not like sports, unless you consider treating all humankind with love and respect a sport.
Todd BarryAmusement if one of humankind's strongest motivational forces.
Islands of Truth: A Mathematical Mystery Cruise