Studi filosofis benar dan salah dikenal sebagai etika. Bidang ini telah dipelajari selama ribuan tahun dan saat ini memiliki aplikasi dalam berbagai bidang. Informasi terkait termasuk bisnis dan etika ekonomi.

A certificate is proof of qualification of a certain set of skills. Students who obtain a certificate have completed educational requirements and tests. Through completion, they become ready to pursue a degree or diploma, or to head into the professional world in their field of expertise.