Theeyavai theeya payakkum thiruvinum
Theeyavai theeyaarkku aran.
Evil deeds produce evil results; even for the prosperous, evil deeds become a fortress against them.
தீய செயல்கள் தீய பயனை தரும்; செல்வமுடையவருக்கும் கூட தீய செயல்கள் எதிரான கோட்டையாகும்.
This kural appears in Chapter 15 as well — showing Valluvar's conviction that evil creates its own prison. Coveting what belongs to others is evil; it produces evil results that become the covetous person's fortress, trapping them.