Still you could fill the British Museum with evidence uttered by the peasant, and given in favour of the ghost.

If it comes to human testimony there is a choking cataract of human testimony in favour of the supernatural.

If you reject it, you can only mean one of two things.

You reject the peasant's story about the ghost either because the man is a peasant or because the story is a ghost story.

That is, you either deny the main principle of democracy, or you affirm the main principle of materialism--the abstract impossibility of miracle.
You have a perfect right to do so; but in that case you are the dogmatist.