Saying the theory of evolution is a fact is wrong. No theories can be facts and evolution, while compellilng is still just a theory.
I'm not saying that evolution is false as I believe in it and am an ardent christian loathing agnostic but it's important not to sound exactly like the people you criticize, Cow et. all.
http://www.denverpost.com/guestcommentary/ci_2934344
That said, I believe in the
Flying Spaghetti Monster Theory.