Out of these principles,--social reform as the immediate end of revolution and duty as its inspiration,--Mazzini built up an elaborate political programme. He loved system-making and hardly apologised for it. You cannot have unity or harmony without it, he urged, and to a certain extent he had practical justification. It were better, as he said and as subsequent events proved, that the nationalists should argue out their differences before the time for action came, and not paralyse themselves by quarrels in front of the enemy. It was this want of a positive programme, that was, he thought, largely responsible for the failure of the Carbonari. Their policy had hardly gone beyond the overthrow of the existing governments; and they had mustered under their flag royalists and republicans, conservatives and liberals, with the inevitable result that after their first successes they split their ranks and fell an easy prey. It were wiser, so Mazzini pleaded, to be few but united. "The strength of an association depends not on its numbers but on its homogeneity." But the principle was necessarily an intolerant one. It barred many a true patriot, who could not swear to the whole Mazzinian doctrine. For such he had no pity. In his view it was only fear, "the Almighty God of most politicians," that prevented the Moderates from accepting his position. "There can be no moderation," he said at a later date, "between good and evil, truth and error, progress and reaction." Unluckily truth to him too often meant adhesion to his own theories; and he could never forgive men, who, starting from his premisses, could not follow his logic to the end, though, like most men who pride themselves on being logical, he was often singularly incapable of accurate reasoning. It was this intolerance that wrecked so much of his after life, that made him waste his splendid powers in fighting men, by whose side he ought to have been working.