How are heart and conscience in conflict in Huck's seeing Jim as his friend and family, and as a slave? What details of their trip down the Mississippi does Huck recall that soften him towards Jim? How has Jim helped Huck be a better person?

Huck's heart is in conflict because he loves Jim; he sees him as a friend, and he sees him as another human being. In contrast, he's been raised to believe slavery is right and natural. He's grown up in a slave state and sees most of the slave owners he personally knows as good people.

Huck never wants to turn Jim in, but he definitely spends most of the time trying to justify why he should or shouldn't. Jim, as a man, has taught Huck to look at the person rather than the color. He's taught him that slaves (blacks) deserve to be free, that they have feelings and love their families. Huck becomes a better person because of this; he learns to make his own decisions and he learns to see the whole person rather than making overall suppositions.