In the mean time, innumerable joint-stock companies started up everywhere. They soon received the name of Bubbles, the most appropriate that imaginat… - Charles Mackay

Every age has its peculiar folly; some scheme, project, or phantasy into which it plunges, spurred on either by the love of gain, the necessity of excitement, or the mere force of imitation. Failing in these, it has some madness, to which it is goaded by political of religious causes, or both combined.

Some in clandestine companies combine;
Erect new stocks to trade beyond the line;
With air and empty names beguile the town,
And raise new credits first, then cry ’em down;
Divide the empty nothing into shares,
And set the crowd together by the ears. – Defoe

Some men, by dint of excessive egotism, manage to persuade their contemporaries that they are very great men indeed: they publish their acquirements so loudly in people’s ears, and keep up their own praises so incessantly, that the world’s applause is actually taken by storm.