cold of heart

See: callous
Mentioned in ?
References in classic literature ?
and I speak out of later knowledge--Heaven forefend me from the most of the average run of male humans who are not good fellows, the ones cold of heart and cold of head who don't smoke, drink, or swear, or do much of anything else that is brase, and resentful, and stinging, because in their feeble fibres there has never been the stir and prod of life to well over its boundaries and be devilish and daring.