It should be known that the qualities of Goodness, Darkness, and Ignorance belong to the gods and the Asuras. Goodness is the quality of the gods; while the two others belong to the Asuras.
सत्त्वं रजस्तमश्चेति देवासुरगुणान् विदुः। सत्त्वं देवगुणं विद्यादितरावासुरौ गुणौ॥