"We can't blame children for occupying themselves with Facebook rather than playing in the mud. Our society doesn't put a priority on connecting with nature. In fact, too often we tell them it's dirty and dangerous."

"Outright bans on plastic bags may not be the best solution, but education and incentives to get people to stop using them are necessary."

"We must reinvent a future free of blinders so that we can choose from real options."

"The damage that climate change is causing and that will get worse if we fail to act goes beyond the hundreds of thousands of lives, homes and businesses lost, ecosystems destroyed, species driven to extinction, infrastructure smashed and people inconvenienced."

"If one morning I walked on top of the water across the Potomac River, the headline that afternoon would read: 'President Can't Swim.'"

"The fleet sailed to its war base in the North Sea, headed not so much for some rendezvous with glory as for rendezvous with discretion."

"You can't just let nature run wild."

"Our job is to represent the truth of human nature, whether you're playing a tender love story that's set in a coffee shop or whether you're in 'The Avengers,' which is set in a Manhattan which is exploding."