Dhammapada 26-27 [Khuddaka Nikaya]

II- Appamadavagga, Heedfulness
4 - Balanakkhattasanghuttha Vatthu

Pamadamanuyunjanti,
bala dummedhino jana;
appamadanca medhavi,
dhanam setthamva rakkhati.
Ma pamadamanuyunjetha,
ma kamaratisanthavam;
appamatto hi jhayanto,
pappoti vipulam sukham.

26: The foolish and the ignorant give themselves over to negligence; whereas the wise treasure mindfulness as a precious jewel.
27: Therefore, one should not be negligent, nor be addicted to sensual pleasures; for he who is established in mindfulness, through cultivation of Tranquillity and Insight Development Practice, experiences supreme happiness (i.e., realizes Nibbana).
 

Reference:
Mya Tin, Daw, tr. The Dhammapada: Verses and Stories. Rangoon: Burma Tipitaka Association, 1986.

Posted by Nyan U