Why do you think Marlow states:“He had the power to charm or frighten rudimentary souls into an aggravated witch-dance in his honour; he could also fill the small souls of the pilgrims with bitter misgivings: he had one devoted friend at least, and he had conquered one soul in the world that was neither rudimentary nor tainted with self-seeking. No; I can’t forget him, though I am not prepared to affirm the fellow was exactly worth the life we lost in getting to him.” (Heart Of Darkness)