Stephen Jay Gould

[yms]

"Scientific creationism" is a self-contradictory, nonsense phrase precisely because it cannot be falsified. I can envision observations and experiments that would disprove any evolutionary theory I know, but I cannot imagine what potential data could lead creationists to abandon their beliefs. Unbeatable systems are dogma, not science.
http://www.freethought-web.org/ctrl/gould_fact-and-theory.html