[...] John Jay Chapman (1862-1933), today a half-forgotten American political activist and essayist who wrote about political radicals:

The radicals are really always saying the same thing. They do not change; everybody else changes. They are accused of the most incompatible crimes, of egoism and a mania for power, indifference to the fate of their own cause, fanaticism, triviality, want of humour, buffoonery and irreverence. But they sound a certain note. Hence the great practical power of consistent radicals. To all appearance nobody follows them, yet everyone believes them. They hold a tuning-fork and sound A, and everybody knows it really is A, though the time-honoured pitch is G flat. The community cannot get that A out of its head. Nothing can prevent an upward tendency in the popular tone so long as the real A is kept sounding.