There is no need to put the whole paragraph in italics.
puhekieltä (monikko) italic|lang=en exaggerated intonation or some similar oral speech device by which one or more words is heavily and usually affected affectedly emphasized or otherwise given sharp prominence
Margaret Long:
was yapping, her silly voice fraught with italics.
W.J.Locke:
a woman who has an irritating way of speaking in italics