3. In a third class of men, a far rarer one, the will has acquired the habit of acting principally in pure intellect, of setting free the intelligence, in its special function, from the tyranny of the passions and of the limits of matter, thus giving all their conceptions a character of universality. These are the _intellectual_ persons. They include such heroes as perish in martyrdom for their country, the highest type of poets, and especially true philosophers and sages, those whose mission it is, according to Pythagoras and Plato, to govern humanity. In these men, passion is not extinct; for without it nothing could be effected; it constitutes fire and electricity in the moral world. The passions have here become the servants of intelligence, whilst in the former category intelligence is, oftener than not, the slave of the passions. 4. The loftiest human ideal is realized by a fourth class of men, those who have added to the dominion of the intelligence over soul and instinct, that of the will over their whole being. They exercise supreme mastery through the control and possession of all their faculties. In the human trinity they have realized unity. Owing to this marvellous concentration, which collects together all the powers of life, their will, by projecting itself into others, acquires an almost limitless strength, a radiating and creative magic. These men have borne different names in history. They are primordial men, _adepts_, _great initiates_, sublime geniuses who transform and metamorphose humanity. So rare are they that they may be counted in history; Providence scatters them here and there at long intervals of time, like stars in the heavens.[21]