First rule in government spending: why build one when you can have two at twice the price? Carl Sagan More Quotes by Carl Sagan More Quotes From Carl Sagan The idea that God is an oversized white male with a flowing beard, who sits in the sky and tallies the fall of every sparrow is ludicrous. But if by 'God,' one means the set of physical laws that govern the universe, then clearly there is such a God. This God is emotionally unsatisfying... it does not make much sense to pray to the law of gravity. Carl Sagan atheist mean fall The dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance. Carl Sagan decay ignorance america Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense. Carl Sagan atheist science mean A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time. Carl Sagan ocean lonely war Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really is. Accordingly, science sometimes requires courage - at the very least the courage to question the conventional wisdom. Carl Sagan dogma challenges sometimes Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another. Carl Sagan perspective inspirational love You have to know the past to understand the present. Carl Sagan political past knowledge Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs. Carl Sagan sky doors night Be grateful everyday for the brief but magnificent opportunity that life provides. Carl Sagan grateful everyday opportunity To live in the hearts of others is to never die in those we leave behind. Carl Sagan dies behinds heart After the earth dies, some 5 billion years from now, after it's burned to a crisp, or even swallowed by the Sun, there will be other worlds and stars and galaxies coming into being - and they will know nothing of a place once called Earth. Carl Sagan other-worlds stars years We are made of stellar ash. Our origin and evolution have been tied to distant cosmic events. The exploration of the cosmos is a voyage of self-discovery. Carl Sagan events self discovery Every star may be a sun to someone. Carl Sagan stars sun may If we could travel into the past, it's mind-boggling what would be possible. For one thing, history would become an experimental science, which it certainly isn't today. The possible insights into our own past and nature and origins would be dazzling. For another, we would be facing the deep paradoxes of interfering with the scheme of causality that has led to our own time and ourselves. I have no idea whether it's possible, but it's certainly worth exploring. Carl Sagan mind past ideas An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence. Because God can be relegated to remote times and places and to ultimate causes, we would have to know a great deal more about the universe than we do now to be sure that no such God exists. To be certain of the existence of God and to be certain of the nonexistence of God seem to me to be the confident extremes in a subject so riddled with doubt and uncertainty as to inspire very little confidence indeed. Carl Sagan atheist doubt inspire The significance of our lives and our fragile planet is then determined only by our own wisdom and courage. We are the custodians of life's meaning. We long for a Parent to care for us, to forgive us our errors, to save us from our childish mistakes. But knowledge is preferable to ignorance. Better by far to embrace the hard truth than a reassuring fable. If we crave some cosmic purpose, then let us find ourselves a worthy goal. Carl Sagan errors ignorance mistake Extinction is the rule. Survival is the exception. Carl Sagan exception-to-the-rule mass-extinction nature Coal, oil and gas are called fossil fuels, because they are mostly made of the fossil remains of beings from long ago. The chemical energy within them is a kind of stored sunlight originally accumulated by ancient plants. Our civilization runs by burning the remains of humble creatures who inhabited the Earth hundreds of millions of years before the first humans came on the scene. Like some ghastly cannibal cult, we subsist on the dead bodies of our ancestors and distant relatives. - Dr. Carl Sagan Carl Sagan long-ago humble running We humans look rather different from a tree. Without a doubt we perceive the world differently than a tree does. But down deep, at the molecular heart of life, the trees and we are essentially identical. Carl Sagan doubt heart tree We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock. Carl Sagan rocks humanity world