अयुक्तः प्राकृतः स्तब्धः शठो नैकृतिकोऽलसः।
विषादी दीर्घसूत्री च कर्ता तामस उच्यते॥
He who is crude, arrogant, deceitful, lazy, depressed, and procrastinating—such a doer is called “Tamasika” (born of darkness).