Daily Dose of Ingersoll

The facts now show beyond all doubt that all religions came
from substantially the same source — but there is not an orthodox
Christian theologian who will admit the facts. He must defend his
creed — his revelation. He cannot afford to be honest. He was not
educated in an honest school. He was not taught to be honest. He
was taught to believe and to defend his belief, not only against
argument but against facts.

Robert Green Ingersoll – “Truth” (1897)