Two powers chiefly lead mankind--impulse and idea: the one influencing sensitive, unfettered, poetical souls, capable of transformations, like Shakespeare; the other governing active, combative, heroic souls, capable of immutability, like Milton. The first are sympathetic and effusive; the second are concentrative and reserved.[113] The first give themselves up, the others withhold themselves. These, by reliance and sociability, with an artistic instinct and a sudden imitative comprehension, involuntarily take the tone and disposition of the men and things which surround them, and an immediate counterpoise is effected between the inner and the outer man. Those, by mistrust and rigidity, with a combative instinct and a quick reference to rule, become naturally thrown back upon themselves, and in their narrow limits no longer feel the solicitations and contradictions of their surroundings. They have formed a model, and thenceforth this model like a watchword restrains or urges them on. Like all powers destined to have sway, the inner idea grows and absorbs to its use the rest of their being. They bury it in themselves by meditation, they nourish it with reasoning, they put it in communication with the chain of all their doctrines and all their experiences; so that when a temptation assails them, it is not an isolated principle which it attacks, but it encounters the whole combination of their belief, an infinitely ramified combination, too strong for a sensuous seduction to tear asunder. At the same time a man by habit is upon his guard; the combative attitude is natural to him, and he stands erect, firm in the pride of his courage and the inveteracy of his determination.