Kural - 711

Men pure in heart, who know of words the varied force,
Should to their audience known adapt their well-arranged discourse

Explanation
Let the pure who know the arrangement of words speak with deliberation after ascertaining (the nature of) the court (then assembled).

Tamil Transliteration
Avaiyarinadhu Aaraaindhu Solluka Sollin
Thokaiyarindha Thooimai Yavar.