There was something pathetic, almost fearful, in the insistency of her manner, and Paul had a glimpse again of that intangible yet tauntingly familiar phantom in his wife's bearing.
"The Orchard of Tears"
Sax Rohmer
Birnier cursed the insistency of the drums and the orgiastical grunts.
"Witch-Doctors"
Charles Beadle
I was greatly dissatisfied relative to this question, but according to the opinion of Porcupine, protests by a single person, with what insistency they may be made, will not be heard.
"Botchan (Master Darling)"
Mr. Kin-nosuke Natsume, trans. by Yasotaro Morri