The mind is just another muscle.
The biggest thing I learned from losing? Winning's better.
We must go through a natural revolution if we are to survive on earth. We need to change people's perceptions. If there's no environment, there's no human race. We are in a state of global denial.
I haven't been in a store to buy anything for five years.
When our time's up, it's up. All the money in the world won't buy you one more day.
Even if we didn't have greenhouse gases, were going to have to move away from fossil fuels, as we're going to run out. They're finite, whereas solar and wind are infinite.