diametrically

“True,” replied the marquise, without wincing in the slightest degree at the tragic remembrance thus called up; “but bear in mind, if you please, that our respective parents underwent persecution and proscription from diametrically opposite principles; in proof of which I may remark, that while my family remained among the staunchest adherents of the exiled princes, your father lost no time in joining the new government; and that while the Citizen Noirtier was a Girondin, the Count Noirtier became a senator.”

Although professing diametrically opposite principles from those of the editor of the other paper, Beauchamp—as it sometimes, we may say often, happens—was his intimate friend.