Virtually every major technological advance in the history of the human species – back to the invention of stone tools and the domestication of fire – has been ethically ambiguous. | Carl Sagan quote HD Wallpaper

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Virtually every major technological advance in the history of the human species – back to the invention of stone tools and the domestication of fire – has been ethically ambiguous. (Carl Sagan)

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By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang. | Carl Sagan quote

Humanity has advanced, when it has advanced, not because it has been sober, responsible, and cautious, but because it has been playful, rebellious, and immature. | Tom Robbins quote

When permitted to listen to alternative opinions and engage in substantive debate, people have been known to change their minds. It can happen. | Carl Sagan quote

Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species. | Carl Sagan quote

I am the most spontaneous speaker in the world because every word, every gesture, and every retort has been carefully rehearsed. | George Bernard Shaw quote

Everyone has been made for some particular work, and the desire for that work has been put in every heart. | Rumi quote

Anger can be a bitterness that devours your soul while righteous indignation is morally driven, it’s ethically driven. | Cornel West quote

Virtually every major technological advance in the history of the human species – back to the invention of stone tools and the domestication of fire – has been ethically ambiguous. | Carl Sagan quote HD Wallpaper

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