"The way I see it, when you put the uniform on, in effect you sign a contract. And you don't back out of a contract merely because you've changed your mind. You can still speak up for your principles, you can still argue against the ones you're being made to fight for, but in the end you do the job."

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If we human beings learn to see the intricacies that bind one part of a natural system to another and then to us, we will no longer argue about the importance of wilderness protection, or over the question of saving endangered species, or how human communities must base their economic futures - not on short-term exploitation - but on long-term, sustainable development.

— Gaylord Nelson