“Notable, again, is the emancipated way in which some of them discuss, as if they were problems of mechanics, objects or events round which the associations of ideas and feelings have thrown a glamour of conventional sentiment. In regard to most beliefs, they are usually more or less heterodox or heretical, though not often constant, being apt to swing round suddenly from one point to a quite opposite point of the compass of belief.... Inspired with strong faith in the opinions which they adopt, they exhibit much zeal and energy in the propagation of them.”[357] They are careless of every obstacle, and untroubled by the doubts which arise in the minds of calm and sceptical thinkers. Thus they are frequently social or religious reformers. It should be understood that they do not _create_ anything, but only give a direction to the latest movements prepared by time and circumstances, as also--thanks to their passion for novelty and originality--they are nearly always inspired by the latest discoveries or innovations, and use these as their starting-point in guessing at the future. Thus Schopenhauer wrote at an epoch in which pessimism was beginning to be fashionable, together with mysticism, and only fused the whole into one philosophic system. Cæsar found the ground prepared for him by the Tribunes. When, says Taine, a new civilization produces a new art, there are ten men of talent who express the idea of the public and group themselves round one man of genius who gives it actuality; thus De Castro, Moreto, Lopez de la Vega, round Calderon; Van Dyck, Jordaens, De Vos, and Snyders round Rubens. Luther summed up in himself the ideas of many of his contemporaries and predecessors; it is sufficient to mention Savonarola. The spherical shape of the earth had already been maintained by St. Thomas Aquinas, and by Dante, before the discoveries of Columbus, which are also antedated by those of the Canary Islands, Iceland, and Cape Verde. If the new ideas are too divergent from prevalent popular opinion, or too self-evidently absurd, they die out with their author, if, indeed, they do not involve him in their fall. Arnold of Brescia, Knutzen,[358] Campanella, tried to shake off the dominion of the clergy, and take away the temporal power of the Pope; they were persecuted and crushed. “The insane person,” says Maudsley, “is in a minority of one in his opinion, and so, at first, is the reformer, the difference being that the reformer’s belief is an advance on the received system of thought, and so, in time, gets acceptance, while the belief of the former, being opposed to the common sense of mankind, gains no acceptance, but dies out with its possessor, or with the few foolish persons whom it has infected.”[359]