Mentioning the background of ethical disagreement and the two parties’ evidences of its being real or visionary, this paper deals with a conceptual analysis of restrictions and signs in a case of real ethical conflict. It has shown that the solution of the problem lies in the fact that whether moral ought to may be reduced to its elementary conceptual components or not. Returning “ought to” into “reason”, one can support the reasonability of duties, capability of evaluation, and measurability. “Inevitability of an ethical violation”, “not abolishing state” of any of the two obligations by the other, “existence of the contradiction” and “ethical residue” have been introduced as important restrictions and particular signs of a real conflict.