That will require overcoming a deep cynicism about government and politics.

This would require overcoming the objections of China.

But a war on African poverty would require overcoming the weary sense of hopelessness that surrounds attitudes toward Africa.

Escaping the lock-in condition requires overcoming these barriers.

To be sure, developing smart skin's systems requires overcoming a slew of challenges.

But it will require overcoming a force that rivals gravity: Andretti's luck.

To get health legislation through, he warns, requires overcoming very powerful interests, "The Cadillacs of lobbyists."

Peace in the Middle East will require overcoming deep divisions of history and religion, yet we know this is possible.

But all this requires overcoming one of the most powerful forces in human nature: the resistance to change.

Still, it requires overcoming huge psychological barriers for homeowners to dig up their turf and park the lawnmower.