Answer:
"Before I can live with other folks, I've got to live with myself"
Step-by-step explanation:
The quote shown in the question above was said by Atticus in "To Kill a Mockinbird" a book written by Harper Lee, which seeks to present a situation of injustice and prejudice against a black man who was unjustly condemned in a white community.
This man was accused of raping a white woman and despite being innocent, he was arrested, tried and convicted. During the trial he had Atticus as a lawyer.
Atticus was a white man, admired in the community, but when he decided to defend the black man, he was seen as a traitor and a crazy man. Atticus's daughter, asks why he decided to defend the black man if the whole city was against that decision, it was at that moment that he said the sentence selected above.
When Atticus says "Before I can live with other folks, I've got to live with myself" he is saying that a person must follow his conscience before acting as other people wish. In his conscience, he believed that the black man was innocent and was being a victim of racism and therefore, he could not let himself be carried away by the opinion of others.