Karl Popper Quotes

I have come to the conclusion that Darwinism is not a testable scientific theory, but a metaphysical research programme.

Evolution is one of the two or three most primally fascinating subjects in all the sciences.

The first and most important reason for its elimination is the unquestioned fact that evolution is not a science; it is a hypothesis only, a speculation.

The creationists repeatedly assert that evolution is a theory, and, indeed, not a scientific theory at all because it is unable to predict future developments. Both statements are untrue. Evolution [phenomenon] is a fact, not theory. It once was a theory but today, as a consequence of observation and testing it is probably the best authenticated actu- ality known to science. There are theories concerning the mechanisms of evolution but no competent student doubts the reality of evolution

[Evolution is] one of the best documented, most compelling and exciting concepts in all of science.

Evolution is as much a fact as the heat of the sun.

...evolution is not a religious tenet, to which one swears allegiance or belief as a matter of faith.. It is a factual reality of the empirical world. Just as one would not say 'I believe in gravity," one should not proclaim 'I believe in evolution.

Evolution is not truth; it is merely a hypothesis-it is millions of guesses strung together.

There is no such thing as evolution.

In some ways, to believe in evolution is almost like a following; a cult following - if you don't believe in evolution, you're considered completely backward. That seems to me very indicative of bias as well.

There is a tendency for people to say evolution is only a theory. That is inappropriate.

Some claim evolution is just a theory. As if it were merely an opinion. The theory of evolution, like the theory of gravity, is a scientific fact. Evolution really happened. Accepting our kinship with all life on Earth is not only solid science. In my view, it’s also a soaring spiritual experience.

All scientists agree that evolution has occurred - that all life comes from a common ancestry, that there has been extinction, and that new taxa, new biological groups, have arisen. The question is, is natural selection enough to explain evolution? Is it the driver of evolution?

And, you know, the fact is, if you believe in evolution, we all have a common ancestor, and we all have a common ancestry with the plant in the lobby. This is what evolution tells us. And, it's true. It's kind of unbelievable.

Evolution is a fact. It is the best explanation of what is known from observations. It's a theory as powerful as the theory of gravity.

We have politicians running for office—for school boards—in parts of the country who are denying the fundamental principle of biology. They are trying to equate the fact that Evolution is a theory with the idea that Evolution might not be true…. The teaching of Evolution should not be a political issue…. Evolution was discovered, not invented.

The evolution of life, and the evolutionary origin of mankind, are scientifically established as firmly and completely as any historical event not witnessed by human observers. Any concession to anti-evolutionists, suggesting that there are scientific reasons to doubt the facticity of evolution, would be propagating a plain untruth.

I doubt evolution is real.

Evolution has primarily been an attack on religion by militant atheists who wrap themselves in the mantle of science in an effort to refute all religious claims concerning a creator - an effort that has also often attempted to suppress all scientific criticisms of Darwin's work.

Most Americans have their head in the sand about evolution.

Darwinian evolution is unscientific, unobservable, unbelievable, but understandable in a world that hates God.

The evolution theory is purely the product of the imagination.

As you kind of get over the anxiety about [science and evolution], it actually adds to your sense of awe about this amazing universe that we live in, it doesn't subtract from it at all.

There are very interesting controversies within evolution; however, whether evolution occurs is not one of them. It definitely does.

Evolution is a very, very important idea. It is the explanation for all of life - a stunningly simple, yet powerful explanation. If you think about it, before Darwin, we hadn't the foggiest idea of how we came into being. Now we do. It's still such an exciting idea that it is well worth everybody understanding it.