अधर्मं धर्ममिति या मन्यते तमसाऽऽवृता। सर्वार्थान्विपरीतांश्च बुद्धिः सा पार्थ तामसी॥
adharmaṃ dharmamiti yā manyate tamasā''vṛtā sarvārthānviparītāṃśca buddhiḥ sā pārtha tāmasī
Meaning
And that which, shrouded in Ignorance, thinks wrong to be right, and sees everything perversely, O Arjuna, that intellect is ruled by Darkness.
English translation by Shri Purohit Swami (1935), public domain. Sanskrit text in the public domain. About Duvidha