Evidence - Quotes


A theory in science is a logical creation. It reflects the most accurate experimental observations and the best understanding of how the world works. Yet a scientific theory doesn’t necessarily represent absolute truth. It can only capture the state of our knowledge so far. There’s every chance that a new piece of evidence will come to light that disproves the theory, and sends the theoreticians back to the drawing board.

Paul Parsons

Only a fool of a scientist would dismiss the evidence and reports in front of him and substitute his own beliefs in their place.

Paul Kurtz

Science helps us avoid dogmatism: basing conclusions on authority rather than logic and evidence.

Michael Shermer

Proof is derived not through a single piece of evidence, but through that convergence of evidence from numerous lines of inquiry, all of which point to an unmistakable conclusion.

Michael Shermer

The whole point of faith, in fact, is to believe regardless of the evidence, which is the very antithesis of science.

Michael Shermer

If you build a person without any bones in him he may look fair enough to the eye, but he will be limber and cannot stand up; and I consider that evidence is the bones of an opinion.

Mark Twain

It has been said that man is a rational animal. All my life I have been searching for evidence which could support this.

Bertrand Russell

Science is best defined as a careful, disciplined, logical search for knowledge about any and all aspects of the universe, obtained by examination of the best available evidence and always subject to correction and improvement upon discovery of better evidence. What`s left is magic. And it doesn`t work.

James Randi

There is nothing we need to believe on insufficient evidence in order to have deeply ethical and spiritual lives.

Sam Harris

If someone doesn`t value evidence, what evidence are you going to provide that proves they should value evidence? If someone doesn`t value logic, what logical argument would you invoke to prove they should value logic?

Sam Harris

One of the saddest lessons of history is this: If we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle. We’re no longer interested in finding out the truth.

Carl Sagan

I should wish to see a world in which education aimed at mental freedom rather than imprisoning the minds of the young in rigid armor of dogma calculated to protect them through life against the shafts of impartial evidence.

Bertrand Russell

Tell a devout Christian that his wife is cheating on him, or that frozen yogurt can make a man invisible, and he is likely to require as much evidence as anyone else, and to be persuaded only to the extent that you give it. Tell him that the book he keeps by his bed was written by an invisible deity who will punish him with fire for eternity if he fails to accept its every incredible claim about the universe, and he seems to require no evidence what so ever.

Sam Harris

One of the biggest problems with the world today is that we have large groups of people who will accept whatever they hear on the grapevine, just because it suits their worldview - not because it is actually true or because they have evidence to support it.

Neil deGrasse Tyson

It is wrong always, everywhere, and for anyone, to believe anything upon insufficient evidence.

William Kingdon Clifford


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