For instance, the blood of hibernating arctic squirrels may supercool to minus 3 degrees, when it would normally congeal. The supercooled blood still flows, since it remains a liquid, but the slightest disturbance will cause it to freeze, killing the squirrel; therefore, you should not disturb hibernating arctic squirrels.
Unless a woman has a decided pleasure and facility in teaching, an honest knowledge of everything she professes to impart, a liking for children, and, above all, a strong moral sense of her responsibility towards them, for her to attempt to enroll herself in the scholastic order is absolute profanation.