Kural - 455

Both purity of mind, and purity of action clear,
Leaning no staff of pure companionship, to man draw near

Explanation
Chaste company is the staff on which come, these two things, viz, purity of mind and purity of conduct.

Tamil Transliteration
Manandhooimai Seyvinai Thooimai Irantum
Inandhooimai Thoovaa Varum.