Kolya was a braggart, a know-it-all, a Jew-baiting....

“ Kolya was a braggart, a know-it-all, a Jew-baiting Cossack, but his confidence was so pure and complete it no longer seemed like arrogance, just the mark of a man who had accepted his own heroic destiny. ”

David Benioff

From : City of Thieves