We never know which of us will start the chain reaction. But one of us will.

Environmentalism is not about the environment. It is about people. It is about a vision for a better life-for people.

We can all change the people around us by changing ourselves.

The most radical political act there is is to be an optimist. The most radical political act there is is to believe that, if I change, other people will follow suit.

Believe with all your heart that how you live your life makes a difference

Knowing how to live is not something we have to teach children. Knowing how to live is something we have to be careful not to take away from them.

All of our potentials for good are unlimited.