conscience - conformity to one's own sense of right conduct; "a person of unflagging conscience"

carefulness - the quality of being careful and painstaking; "I admired the carefulness of his work"

meticulosity, meticulousness, punctiliousness, scrupulousness - strict attention to minute details

thoroughness - conscientiousness in performing all aspects of a task

diligence - conscientiousness in paying proper attention to a task; giving the degree of care required in a given situation

strictness, stringency - conscientious attention to rules and details