“You are an abolitionist, ain’t you?” “As to that, I cannot so readily answer. If by abolitionist you mean a zealot, I am none; but if you mean a man, who, being a man, feels for all men, slaves included, and by any lawful act, opposed to nobody’s interest, and therefore, rousing nobody’s enmity, would willingly abolish suffering (supposing it, in its degree, to exist) from among mankind, irrespective of color, then am I what you say.” “Picked and prudent sentiments. You are the moderate man, the invaluable understrapper of the wicked man. You, the moderate man, may be used for wrong, but are useless for right.”
Herman Melville on moderates, all the way back in 1857: