1 Gita Sloka Every Day - Chapter 16 - Daivasura Sampad Vibhaga Yoga - Sloka 7

The entire content of this mail is from Shri V N Gopala Desikan's  Srimad Bhagavad Gita, published by Vishishtadvaita Research Centre, Chennai and The Bhagavad Gita by Swami Chidbhavananda published by Ramakrishna Mission

The Demoniacal Ways - 7-18
1 Gita Sloka  Every Day - Chapter 16 - Daivasura Sampad Vibhaga Yoga - Sloka 7

Pravrittim cha nivrittim cha janah na viduh asurah I

Na shoucham na api cha acharah na satyam teshu vidhyate II sloka 7

प्रवृत्तिं च निवृत्तिं च जनाः न विदुः असुराः I 

न शौचम् न अपि च आचारः न सत्यं तेषु विध्यते II श्लोक 7

The demoniac know not what to do and what to refrain from; neither purity, nor right conduct nor truth is found in them.

Commendable acts are those which are conducive to the general welfare of man. They are designated as dharma. Prohibited acts are those that deprave man and ruin his career. They are condemned as adharma. The good always conform to dharma. Animals are not altogether unaware of dharma and adharma. Instinctively they understand what to do and what to refrain from. But men of the asura type are devoid of discrimination in this respect. Impure thoughts alone sprout in their minds. Their physical habits and doings are anything but clean. Utterances coming out of them are distorted, diabolical and devoid of truth. Pollution of the entire personality is what is found in them. 

If the demoniac be asked as to why they behave malignantly, the justification they make betrays their disposition.