the consciousness of the moral quality of one's own conduct or intentions, together with a feeling of obligation to refrain from doing wrong
conformity to the dictates of conscience; conscientiousness
Conscience is the inner voice which warns us that someone may be looking — H L Mencken
in all conscience
by any standard of fairness
on one's conscience
said of a misdeed or omission: causing one to feel guilty
conscienceless adj
[Latin conscientia from conscient-, consciens, present part. of conscire to be conscious, be conscious of guilt, from con- with (oneself) + scire to know]