"She'll blab your most secret plans and theories to every one of her acquaintance... and make them appear ridiculous by announcing them before they are matured. If you attempt to study with a woman, you'll lie ruled... to entertain fancies instead of theories, air-castles instead of intentions, qualms instead of opinions, sickly prepossessions instead of reasoned conclusions. Your wide heaven of study, young man, will soon reduce itself to the miserable narrow expanse of her face and your myriad of stars to her two trumpery eyes."