I don't think either science or religion are seen as a source of the truth. They're both methods established to help seek the truth, be it rational truth in the case of science, or irrational truth in the case of religion, but neither purport to provide absolute answers.

I suppose between the times of Newton and Einstein you could say that science did purport to be able to provide all the answers, but I'm not sure that can still be claimed after Heisenberg.