In the case of human crowds the chief is often nothing more than a ringleader or agitator, but as such he plays a considerable part. His will is the nucleus around which the opinions of the crowd are grouped and attain to identity. He constitutes the first element towards the organisation of heterogeneous crowds, and paves the way for their organisation in sects; in the meantime he directs them. A crowd is a servile flock that is incapable of ever doing without a master. The leader has most often started as one of the led. He has himself been hypnotised by the idea, whose apostle he has since become. It has taken possession of him to such a degree that everything outside it vanishes, and that every contrary opinion appears to him an error or a superstition. An example in point is Robespierre, hypnotised by the philosophical ideas of Rousseau, and employing the methods of the Inquisition to propagate them. The leaders we speak of are more frequently men of action than thinkers. They are not gifted with keen foresight, nor could they be, as this quality generally conduces to doubt and inactivity. They are especially recruited from the ranks of those morbidly nervous, excitable, half-deranged persons who are bordering on madness. However absurd may be the idea they uphold or the goal they pursue, their convictions are so strong that all reasoning is lost upon them. Contempt and persecution do not affect them, or only serve to excite them the more. They sacrifice their personal interest, their family--everything. The very instinct of self-preservation is entirely obliterated in them, and so much so that often the only recompense they solicit is that of martyrdom. The intensity of their faith gives great power of suggestion to their words. The multitude is always ready to listen to the strong-willed man, who knows how to impose himself upon it. Men gathered in a crowd lose all force of will, and turn instinctively to the person who possesses the quality they lack. Nations have never lacked leaders, but all of the latter have by no means been animated by those strong convictions proper to apostles. These leaders are often subtle rhetoricians, seeking only their own personal interest, and endeavouring to persuade by flattering base instincts. The influence they can assert in this manner may be very great, but it is always ephemeral. The men of ardent convictions who have stirred the soul of crowds, the Peter the Hermits, the Luthers, the Savonarolas, the men of the French Revolution, have only exercised their fascination after having been themselves fascinated first of all by a creed. They are then able to call up in the souls of their fellows that formidable force known as faith, which renders a man the absolute slave of his dream.