whose foundation, being fraud, illusion, credulity, and infatuation, fell to the ground as soon as the artful management of its directors was discove… - Charles Mackay

In reading The History of Nations, we find that, like individuals, they have their whims and their peculiarities, their seasons of excitement and recklessness, when they care not what they do. 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.

"Toda era tem sua loucura peculiar; algum plano, projeto ou fantasia em que mergulha, estimulada pelo amor do ganho, pela necessidade de emoção ou pela simples força da imitação. Se tudo isso falhar, ela ainda assim possui uma loucura, a que é incitada por causas políticas ou religiosas, ou por ambas combinadas." (from "O mundo assombrado pelos demônios: A ciência vista como uma vela no escuro" by Carl Sagan, Charles Mackay)

the dangerous practice of stock-jobbing, and would divert the genius of the nation from trade and industry. It would hold out a dangerous lure to decoy the unwary to their ruin, by making them part with the earnings of their labour for a prospect of imaginary wealth. The great principle of the project was an evil of first-rate magnitude; it was to raise artificially the value of the stock, by exciting and keeping up a general infatuation, and by promising dividends out of funds which could never be adequate to the purpose.