Every age has its peculiar folly: Some scheme, project, or fantasy into which it plunges, spurred on by the love of gain, the necessity of excitement, or the force of imitation.
Men of thought and men of action, clear the Way!
There 's a good time coming, boys! A good time coming.
Old Tubal Cain was a man of might In the days when earth was young.
Extraordinary Popular Delusions and the Madness of Crowds
Three causes especially have excited the discontent of mankind; and, by impelling us to seek remedies for the irremediable, have bewildered us in a maze of madness and error. These are death, toil, and the ignorance of the future.