“...there are intellectual vagabonds too, to whom the hereditary dwelling-place of their fathers seems too cramped and oppressive for them to be willing to satisfy themselves with the limited space any more: instead of keeping within the limits of a temperate style of thinking, and taking as inviolable truth what furnishes comfort and tranquility to thousands, they overlap all bounds of the traditional and run wild with their impudent criticism and untamed mania for doubt, these extravagating vagabonds. They form the class of the unstable, restless, changeable, of the proletariat, and, if they give voice to their unsettled nature, are called "unruly fellows."”