यया धर्ममधर्मं च कार्यं चाकार्यमेव च |
अयथावत्प्रजानाति बुद्धि: सा पार्थ राजसी ||
The Bhagavad Gita, Chapter 18, Verse 31
The intellect is considered in the mode of passion when it is confused between
righteousness and unrighteousness, and cannot distinguish between right and wrong conduct.