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"If you surrendered to the air, you could ride it."
We have a responsibility to future generations to leave the planet in better shape than we found it.
The best way to predict the future is to create it.
The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.