The _prohibitionist_ will give this reason, that the Friends dissipate less; the religionists will say they are more truthful, more godly. While each of the aforementioned reasons have a healthful tendency, there is a more scientific conclusion, for it is a well-known fact that there are thousands of cases of longevity of men and women who lack every moral principle, and dissipate all their lives. The _scientist_ comes to our rescue. He tells us that the Quaker's life is prolonged by his methodical way of living, evenness of temperament, wearing the same weight of clothing, allowing nothing to furrow the brow, regularity of sleeping, drinking, exercising, and eating. He takes no food or drink into his stomach above 100 degrees or below 50 degrees Fahr. _Boiling_ hot soup and frozen _ice-cream_ are unknown in a Quaker family. This might convey the idea that ice-cream is foresworn by them. Not entirely so. They use the same good judgment in that as in every other indulgence, allowing the cream to rise in temperature from 10 degrees to 15 degrees above the freezing point, to soft consistency, before it is taken into the stomach. Dr. Ufflemann, a German physician of authority, draws some important conclusions from his own experiments and those of others. The rules laid down are briefly:-- 1. That, in general, a temperature of food which approaches that of the blood is most healthful. 2. For quenching the thirst the best temperature is from 50 degrees Fahr. to 68 degrees Fahr. Americans prefer about 40 degrees. 3. The gulping down of ice-water or hot coffee, etc., means eventually a stomach damnation. 4. The use of very hot and cold substances, following or alternating, is injurious to the teeth. 5. Ingestion of cold food and drinks lessens the bodily temperature, whether it be normal or febrile. 6. Cold food and drinks increase the tendency to cough, by causing, reflexly, a congestion of the bronchial vessels. Hence persons with bronchial disease ought not to indulge in cold drinks.