Clinton appeared at Boston's Symphony Hall last night, where he was honoured by the international education organisation City Year for his work in national service.
As president, Clinton helped create AmeriCorps, the service organisation that helps fund City Year.
"All over the world there are places where men's identity is all caught up in whether they get to tell women what to do and restrict their choices," Clinton said. "We have to develop a sense of identity which is inclusive."
Hillary Clinton was not in attendance, nor was 2012 Republican presidential candidate Mitt Romney, whose former Boston-based firm Bain Capital was a major sponsor of the event.
Instead of politics, Clinton focused on areas he said people must unite around to address global challenges.
He spoke out against the terrorist group Boko Haram, which recently kidnapped nearly 300 girls in Nigeria as part of a larger effort to prevent their education. The girls are still missing.
On climate change, Clinton said, "We don't seem to be approaching it together." And he warned that economic inequality "is not only bad morals and bad social policy, but it's a severe restraint on growth."
"The central issue facing humanity," Clinton said, is whether people in America and abroad understand how interdependent they are. "We have to go forward together.
