If the study to which you apply yourself has a tendency to weaken your affections and to destroy your taste for those simple pleasures in which no alloy can possibly mix, then that study is certainly unlawful, that is to say, not befitting the human mind.
Mary Wollstonecraft Shelley (1974). “Frankenstein, Or the Modern Prometheus: The 1818 Text”, p.51, University of Chicago Press
