"Setting an aggressive enough carbon-reduction goal will result in an appropriate price for carbon and will help many a renewable technology. Consumer education will help. Most importantly, though, will be the continually declining cost trajectory of the real breakthrough in clean-technology costs driven by research and innovation. In the end, private capital is the real barometer of change."

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I don't think there's any way that war can have a place in peace. I think that peace is the active and difficult resistance to the temptation of war; it is the prerogative and the obligation of the injured. Peace is something that has to be vigilantly maintained; it is a vigilance, and it involves temptation, and it does not mean we as human beings are not aggressive. This is a mistaken way of understanding non-violence.

— Judith Butler