4. It is to be noted, That most People do attribute the Diseases of the Teeth to Colds, and Rheums, and other outward Accidents. It is true, outward Accidents will further this Disease, but then there must be Matter before-hand, otherwise outward Colds can have no power to cause this Pain. The same is to be understood in all Stoppages of the Breast, and other Obstructions, as Coughs, and the like. For, if any Part be obstructed, or there be Matter for Distemper, then, on every small occasion of outward Colds, or the like Accidents, Nature complains. If your Teeth and Gums be sound, and free from this Matter, take what Colds you will, and your Teeth will never complain, as daily Experience doth shew. For all outward Colds, and other Accidents of the like nature, have no power to seise any part of the Body, except first there be some inward Defect or Infirmity: Suppose the Teeth be defective, then the Disease falls on that Part; or if it be the Head, Eyes, Breast, Back, or any other Part or Member of the Body, that is obstructed, the Evil is felt in that Part. Therefore if the Mouth be kept clean by continual Washings, it will prevent all Matter which may cause Putrifaction; and then Colds, and the like Accidents, will have no power to seise this Part, or cause this terrible Pain. Even so it is in all other Parts of the Body. If Temperance and Sobriety be observed in Meats, Drinks, and Exercises, with other Circumstances belonging to Health, then Stoppages, Coughs, Colds, and other Obstructions, would not be so frequent on every small occasion: For Temperance has an inward Power and Operation, and does as it were cut off Diseases in the very Bud, preventing the Generation of Matter whence Distempers do proceed, increasing the Radical Moisture, and making the Spirits lively, brisk, and powerful, able to withstand all outward Colds, and other Casualties of the like nature.