conscience
US /ˈkɑːn.ʃəns/
UK /ˈkɑːn.ʃəns/

1.
coscienza
an inner feeling or voice acting as a guide to the rightness or wrongness of one's behavior
:
•
He has a guilty conscience about what he did.
Ha la coscienza sporca per quello che ha fatto.
•
Let your conscience be your guide.
Lascia che la tua coscienza sia la tua guida.