Quotes by Carl Sagan
We are like butterflies who flutter for a day and think it is forever.
Sagan, Carl
Science is a way of thinking much more than it is a body of knowledge.
Sagan, Carl
In Italy, the Inquisition was condemning people to death until the end of the eighteenth century, and inquisitional torture was not abolished in the Catholic Church until 1816. The last bastion of support for the reality of witchcraft and the necessity of punishment has been the Christian churches.
Sagan, Carl
As we learn more and more about the universe, there seems less and less for God to do ... When Newton explained the motion of the planets by the universal theory of gravitation, it no longer was necessary for angels to push and pummel the planets about. When Pierre Simon, the Marquis de Laplace, proposed to explain the origin of the solar system - although not the origin of matter - in terms of physical laws as well, even the necessity for a god involved in the origins of things seemed profoundly challenged.
Sagan, Carl
In many cultures it is customary to answer that God created the universe out of nothing. But this is mere temporizing. If we wish courageously to pursue the question, we must, of course ask next where God comes from. And if we decide this to be unanswerable, why not save a step and decide that the origin of the universe is an unanswerable question? Or, if we say that God has always existed, why not save a step and conclude that the universe has always existed?
Sagan, Carl
Who discovered that CFCs [chlorofluorocarbons] posed a threat to the ozone layer? Was it the principal manufacturer, the DuPont Corporation, exercising corporate responsibility? Was it the Environmental Protection Agency protecting us? Was it the Department of Defense defending us? No, it was two ivory-tower, white-coated university scientists working on something else - Sherwood Rowland and Mario Molina of the University of California, Irvine. Not even an Ivy League university. No one instructed them to look for dangers to the environment. They were pursuing fundamental research. They were scientists following their own interests. Their names should be known to every schoolchild.
Sagan, Carl
The universe seems neither benign nor hostile, merely indifferent.
Sagan, Carl
But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright Brothers. But they also laughed at Bozo the Clown.
Sagan, Carl
If the Universe really [is] made for us, if there really is a benevolent, omnipotent, and omniscient God, then science has done something cruel and heartless, whose chief virtue would perhaps be a testing of our ancient faiths. But if the Universe is heedless of our aspirations and our destiny, science provides the greatest possible service by awakening us to our true circumstances. In accord with the unforgiving principle of natural selection, we are charged with our own preservation - under penalty of extinction.
Sagan, Carl
Handguns are available for self protection in Seattle, but not in nearby Vancouver, Canada; handgun killings are five times more common and the handgun suicide rate is ten times greater in Seattle. Guns make impulsive killing easy.
Sagan, Carl
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time someting like that happened in politics or religion.
Sagan, Carl
When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it.
Sagan, Carl