In the book, for example, Kingsley argues that no person is qualified to say that something that they have never seen (like a human soul or a water-baby) does not exist.
in tHe book, FOR examPLe, kingSLeY ArguEs that No PeRson Is quaLIfieD to saY tHat somEtHINg thAt TheY Have NeveR seen (lIKe a huMAn SoUl Or a Water-baBy) does not exist.