Written by C.S. Lewis (1898-1963), a British writer, literary scholar, professor, and Anglican lay theologian. This was written in a letter to BBC producers.
It seems to me that the New Testament, by preaching repentance and forgiveness, always assumes an audience who already believe in the laws of nature and know they have disobeyed it. In modern England we cannot at present assume this, and therefore most apologetics begins a stage too far on. The first step is to create, or recover, a sense of guilt. Hence, if I gave a series of talks, I should mention Christianity only at the end and would prefer not to unmask my battery till then.
Opponents must be gently instructed, in the hope that God will grant them repentance leading them to a knowledge of the truth [2 Timothy 2:25]