From The Bride of Frankenstein
[after seeing Pretorius' creations
] But this isn't science. It's more like black magic.
You think I'm mad. Perhaps I am. But listen, Henry Frankenstein. While you were digging in your graves, piecing together dead tissues, I, my dear pupil, went for my material to the source of life. I grew my creatures, like cultures, grew them as nature does, from seed.