caustic(Noun) Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic. caustic(Noun) The envelope of reflected or refracted rays of light for a given surface or object.
Answered by Aslan. As Atticus has explained to Scout many times about this, He is doing this becasue he values equailty and justice. He believes that everyone is equal and therefore just because Tom Robinson is black, doesn't mean that he should not defend him.e says to Scout many times, if he did not defend this man, he could never tell Jem or her (Scout) not to do something. He has to set a good example for his children and if he expects them to do something or follow certain values, then he must display them first.
He believes everyone has a right to a fair trial and a competent defense. Atticus does not believe this should only apply to the white race. â¦ This is not to say that Atticus believes he has much hope in swaying the town or jury of Tom's innocence. Tom realizes that although he believes in equality in law, most do not.e said it was a  personal case where if he didn't defend Tom he wouldn't be able to  live with himself. Hope this helped you out :)    He believes Tom Robinson is innocent, and he also believes that  everyone should have a fair trial, no matter their race. Atticus  has very strong morals.