Dhammapada 35 [Khuddaka Nikaya]

3 - Cittavagga, The Mind
2 - Annatarabhikkhu Vatthu

Dunniggahassa lahuno,
yatthakamanipatino;
cittassa damatho sadhu,
cittam dantam sukhavaham.

35: The mind is difficult to control; swiftly and lightly, it moves and lands wherever it pleases. It is good to tame the mind, for a well-tamed mind brings happiness.
Reference:
Mya Tin, Daw, tr. The Dhammapada: Verses and Stories. Rangoon: Burma Tipitaka Association,1986.

Posted by Nyan U