A Quote by Carl Sagan

After I give lectures-on almost any subject-I am often asked, "Do you believe in UFOs?" I'm always struck by how the question is phrased, the suggestion that this is a matter of belief and not evidence. I'm almost never asked, "How good is the evidence that UFOs are alien spaceships?"
The evidence is overwhelming that Planet Earth is being visited by intelligently controlled extraterrestrial spacecraft. In other words, SOME UFOs are alien spacecraft. Most are not. It's clear from the Opinion Polls and my own experience, that indeed most people accept the notion that SOME UFOs are alien spacecraft. The greater the education, the MORE likely to accept this proposition
To my way of thinking, there is every bit as much evidence for the existence of UFOs as there is for the existence of God. Probably far more. At least in the case of UFOs there have been countless taped and filmed and, by the way, unexplained sightings from all over the world, along with documented radar evidence seen by experienced military and civilian radar operators.>&gt.
Of course UFOs are real-and they are interplanetary.....The cumulative evidence for the existence of UFOs is quite overwhelming and I accept the fact of their existence.
Whether we like it or not, quantification in history is here to stay for reasons which the quantifiers themselves might not actively approve. We are becoming a numerate society: almost instinctively there seems now to be a greater degree of truth in evidence expressed numerically than in any literary evidence, no matter how shaky the statistical evidence, or acute the observing eye.
But what, after all, is faith? It is a state of mind that leads people to believe something - it doesn't matter what - in the total absence of supporting evidence. If there were good supporting evidence then faith would be superfluous, for the evidence would compel us to believe it anyway. It is this that makes the often-parroted claim that 'evolution itself is a matter of faith' so silly. People believe in evolution not because they arbitrarily want to believe it but because of overwhelming, publicly available evidence.
The evidence points to the fact that Roswell was a real incident and that indeed an alien craft did crash, and that material was recovered from that site. We all know that UFOs are real.All we need to ask is where do they come from, and what do they want?
I believe in evidence. I believe in observation, measurement, and reasoning, confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wilder and more ridiculous something is, however, the firmer and more solid the evidence will have to be.
It was while I was studying philosophy that I came to understand. . . that it is no sign of moral or spiritual strength to believe that for which one has no evidence, neither a priori evidence as in math, nor a posteriori evidence as in science. . . . It's a violation almost immoral in its transgressiveness to shirk the responsibilities of rationality.
I have taken special interest in these accounts [of UFOs].. I think there may be substance to some of these reports... I think we owe it to the people to establish credibility regarding UFOs and to produce the greatest possible enlightenment on this subject.
We are told dogmatically that Evolution is an established fact; but we are never told who has established it, and by what means. We are told, often enough, that the doctrine is founded upon evidence, and that indeed this evidence is henceforward above all verification, as well as being immune from any subsequent contradiction by experience; but we are left entirely in the dark on the crucial question wherein, precisely, this evidence consists.
Well, did he do it?" She always asked the irrelevant question. It didn't matter in terms of the strategy of the case whether the defendant "did it" or not. What mattered was the evidence against him -- the proof -- and if and how it could be neutralized. My job was to bury the proof, to color the proof a shade of gray. Gray was the color of reasonable doubt.
In college, in the early 1950s, I began to learn a little about how science works, the secrets of its great success, how rigorous the standards of evidence must be if we are really to know something is true, how many false starts and dead ends have plagued human thinking, how our biases can colour our interpretation of evidence, and how often belief systems widely held and supported by the political, religious and academic hierarchies turn out to be not just slightly in error, but grotesquely wrong.
There exists in society a very special class of persons that I have always referred to as the Believers. These are folks who have chosen to accept a certain religion, philosophy, theory, idea or notion and cling to that belief regardless of any evidence that might, for anyone else, bring it into doubt. They are the ones who encourage and support the fanatics and the frauds of any given age. No amount of evidence, no matter how strong, will bring them any enlightenment. They are the sheep who beg to be fleeced and butchered, and who will battle fiercely to preserve their right to be victimized.
You can prove almost anything with the evidence of a small enough segment of time. How often, in any search for truth, the answer of the minute is positive, the answer of the hour qualified, the answers of the year contradictory!
If you think that UFOs will come and save you, don't be fooled. The Nazis invented UFOs.
It is an understatement to say that the time has arrived for a serious and open international dialogue regarding the possibility of future interplanetary relations. In no other area of human experience has so much evidence existed for so long, and yet been attended by such a paucity of serious research and analysis - at least in the civilian domain. While the subject matter of UFOs itself is extraordinary, it is the absence of a serious human response to it that is most extraordinary.
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