Posterity is grateful if our contemporaries are not. - Charles Mackay

During seasons of great pestilence men have often believed the prophecies of crazed fanatics, that the end of the world was come. Credulity is always greatest in times of calamity. Prophecies of all sorts are rife on such occasions, and are readily believed, whether for good or evil. During the great plague, which ravaged all Europe, between the years 1345 and 1350, it was generally considered that the end of the world was at hand. Pretended prophets were to be found in all the principal cities of Germany, France, and Italy, predicting that within ten years the trump of the Archangel would sound, and the Saviour appear in the clouds to call the earth to judgment.

We find that whole communities suddenly fix their minds upon one object, and go mad in its pursuit; that millions of people become simultaneously impressed with one delusion, and run after it, till their attention is caught by some new folly more captivating than the first.

whose foundation, being fraud, illusion, credulity, and infatuation, fell to the ground as soon as the artful management of its directors was discovered.