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 not befitting the human mind.
Source: Frankenstein, 1818.
-- Mary Wollstonecraft Shelley, (Aug 30 1797-1851), English author; She is best known as the creator and author of Frankenstein, 1818.