There is something in the pang of change More than the heart can bear, Unhappiness remembering happiness.

This great, though disastrous, culture can only change as we begin to stand off and see... the inveterate materialism which has become the model for cultures around the world.

There can be no peace in the world so long as a large proportion of the population lack the necessities of life and believe that a change of the political and economic system will make them available. World peace must be based on world plenty.

That's the thing about interviews, at some point you're going to change your mind. But it's there forever and you can't escape it.

Man has a limited biological capacity for change. When this capacity is overwhelmed, the capacity is in future shock.

Some argue that now isn't the time to push the green agenda - that all efforts should be on preventing a serious recession. That is a false choice. It fails to recognise that climate change and our carbon reliance is part of problem - high fuel prices and food shortages due to poor crop yields compound today's financial difficulties.

It is tragic that people who are incarcerated are unable to vote. They are probably the most important voices to listen to because they can tell us what we need to change.

It is not strange... to mistake change for progress.

A zebra does not change its spots.

I think it's harder for people than it should be. But as more and more of us become carbon neutral and change the patterns in our lives to be part of the solution instead of part of the problem, we are now beginning to see the changes in policy that are needed.