Your loss we count as our loss. Your struggle we take as our struggle.

You don't have to keep looking at the future foreign policy in terms, simply, of the past.

The kaleidoscope has been shaken. The pieces are in flux. Soon they will settle again. Before they do, let us re-order this world around us.

They could have been removed. They could have been hidden. They could have been destroyed.

If people in the end think that you can't do something in a way which is acceptable then it won't fly. The only way you get anything like this done is if people think, 'I understand why it is being done.'

If what the science tells us about climate change is correct, then unabated it will result in catastrophic consequences for our world.

We are going to expand enormously -- our economy, our consumption, over the years to come ... But the consequences of that on emissions are going to be severe unless we change direction.