What is the conflict of story what men live by Leo Tolstoy?

The main story revolves around the conflict between honesty and temptation, as represented by the shoemaker Martin and his encounter with the rich peasant Nikita. Martin is a hard-working and principled man who believes in the value of honesty and integrity, while Nikita is a wealthy but greedy peasant who is willing to deceive and manipulate others for personal gain. As Martin struggles with the dilemma of whether to keep Nikita's overpaid money or return it, he faces the inner conflict between his moral principles and the allure of material wealth.