「言之有物」

(pos:語句)
<explanation>
yue:講嘢內容充實、有根據、唔空泛
eng:to say something substantial; to deliver no empty words
<eg>
yue:佢講嘢言之有物，令人信服。 (keoi5 gong2 je5 jin4 zi1 jau5 mat6, ling6 jan4 seon3 fuk6.)
eng:What he says has substance and is convincing.