Atheism Quote by Ernst Mayr

The theory of evolution, like the theory of gravity, is a scientific fact.

— Neil deGrasse Tyson

Today the theory of evolution is about as much open to doubt as the theory that the earth goes round the sun.

— Richard Dawkins

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…

— Donald Johanson

Evolution is a bankrupt speculative philosophy, not a scientific fact.

— Jimmy Swaggart

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

— Richard Dawkins

The theory [of evolution] is a scientific mistake.

— Louis Agassiz

Evolution is not a fact. Evolution doesn't even qualify as a theory or as a hypothesis. It is a metaphysical research program, and it…

— Karl Popper

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

— Richard Dawkins

Evolution is a theory in a special philosophical sense of science, but in terms of ordinary laymen's use of language, it's a fact, ..…

— Richard Dawkins

“THE evidence for evolution grows by the day, and has never been stronger. At the same time, paradoxically, ill-informed opposition is also stronger than…

— Richard Dawkins

People sometimes try to score debating points by saying, Evolution is only a theory. That is correct, but it's important to understand what that…

— Richard Dawkins

Some claim evolution is just a theory. As if it were merely an opinion. The theory of evolution, like the theory of gravity, is…

— Neil deGrasse Tyson