B2 noun /ˈkɑn.ʃəns/
Conscience
良心, モラル, 内なる声
Meaning
an inner feeling or voice viewed as acting as a guide to the rightness or wrongness of one's behavior
Example
His conscience prevented him from lying to his parents about his grades.
彼の良心は、成績について両親に嘘をつくのを止めさせました。