I remember him speaking on behalf of the Russians in Kiryat Malachi, in a NY yeshiva. The Rosh Yeshiva told me after, that even though the American bochurim probably don't understand a word of his heavy Russishe Yiddish, but it was the extreme passion that he spoke with, that made it Devorim hayotzim min halev nichnosim el halev... yehi zichro Baruch