The general meaning of ethics rational,optimal(regarded as the best solution of the given options) and appropriate decision brought on the basis of common sense. This does not exclude the possibility of destruction if it is necessary and if it does not take place as the result of intentional malice. If for example, there is the threat of physical conflict and one has nity to other solution,if is acceptable to cause the necessary extent of injury,out of self-defence.thus ethics does not provide rules like morals but if can be used as a means to determine moral values (attitudes or behaviours giving priority to social values, e.g. ethics or morals. )