"made it his avowed objective to put into effect, in every sphere, the decrees of the Council of Trent (the concluding session of which ended in 1563) and was a man who always thought and acted from a spiritual viewpoint, (and) made no change in his mortified style of life, continuing to war a monk’s rough undergarments beneath his papal robes.”
"single-minded, devout to the point of intolerance, relentless in his persecution of heresy...(and left) a distinctive Tridentine impress on the Church."