An eloquent new essay in what is called contemporary history, a book by the Dutch author Geert Mak on the Galata Bridge in Istanbul, brings back memories of the predecessor of the present bridge, which Schwartz first crossed in August 1961. It was a pontoon bridge that opened every night for shipping to the Golden Horn. Every time it was reopened for land traffic, a race took place that now seems like a clue to the creation of human values.