Block and other believers do not see the use of the source materials as plagiarism, but express a view instead that the quality of the way the material was borrowed is consistent with authorship by celestial beings and that study of the sources leads to an even deeper understanding of "The Urantia Book". Gooch, a professor of English, assessed that the use of the sources "does reveal to us an author with a busy genius for metaphysical invention and poetic turns of phrase whose scam was at worst benign and at most visionary." Asked by Gardner what he thought of these plagiarisms, Sprunger responded in a letter by saying that if humans wrote the book the plagiarisms would indeed be disturbing but not if it was written by supermortals.