Cornelius Hunter at Darwin's God presents a new twist on an old objection to Darwinist views of origins. Hunter's point is that there is an a priori assumption inherent to the mindset of most Darwinists that can logically prevent them from seeking truth. Key paragraph is near the top.
Though evolutionists think of themselves as realists—ruthlessly
objective investigators interested only in truth—their naturalistic
constraint ultimately leaves them with only anti realism. This is
because any a priori restriction of the answer might exclude the true answer.
The last line is worth repeating. ANY a priori restriction of the answer logically may exclude the true answer. (Read More)