How does Atticus Finch display the heroic traits of wisdom, kindness, and tenacity in to kill a mockingbird?

Atticus displays wisdome in the raising of his children, as well as his vocation. He shows kindness in his dealing with others, his consideration and Boo, and his concern for Tom Robinson's wife. Atticus displays tenacity in his defense of Tom Robinson.... he never quits, and he consistently holds onto a sense of optimism.

Tenacity:

“Real courage is when you know you’re licked before you begin, but you begin anyway and see it through no matter what.”

Kindness/ Compassion

Atticus raised his head. "Do you want to tell us what happened?" But she did not hear the compassion in his invitation.

Wisdom

"Jem, see if you can stand in Bob Ewell's shoes a minute. I destroyed his last shred of credibility at that trial, if he had any to begin with. The man had to have some kind of comeback, his kind always does. So if spitting in my face and threatening me saved Mayella Ewell one extra beating, that's something I'll gladly take. He had to take it out on somebody and I'd rather it be me than that houseful of children out there. You understand?"