Trifling evils may cheat us and elude our observation, but we gird up our loins to attack great ones. One sick person does not so much as disquiet the house in which he lies; but when frequent deaths show that a plague is raging, there is a general outcry, men take to flight and shake their fists angrily at the very gods themselves. If a fire breaks out under one single roof, the family and the neighbours pour water upon it; but a wide conflagration which has consumed many houses must be smothered under the ruins of a whole quarter of a city.