Father Brown: Be it lectern or pulpit, last minute preparation is always a good idea.
Professor: Don't let the spiritual setting deceive you Father. There is no comparison between your profession and mine. Unlike religion, science is absolute.
Father Brown: I think science has its limitations. It can't explain joy or love. And it certainly can't save your soul.
Professor: Sentimental defence of an irrational dogma.
===
Professor: Would you care to observe my midday lecture, Father? You'll like it. It's on the burden of proof.
Father Brown: I'd be delighted, Professor. And perhaps you'll attend my Sunday homilly, on the gift of doubt.
Father Brown: Series 11, Episode 7