There is a good rule about anti-Semitism. One reason it isn’t better known is because its best expression comes at the mid-point of the 20th century’s towering work of historical fiction: Life and Fate, by Vasily Grossman. That novel, which takes the reader from the Battle of Stalingrad to the Nazi death camps, traverses the entire dark heart of the 20th century. Yet in the very middle of its 900 pages, the great Russian writer examines the question of anti-Semitism. He says almost everything. Anti-Semitism is something which, as Grossman writes, can be met “in the marketplace and in the...