Between 1923 and their first meeting, in Paris in 1936, Boris Pasternak and Marina Tsvetaeva wrote over two hundred letters to each other, widening the circle of their correspondence in 1926 to include Rainer Maria Rilke. With their letters the poets offered each other creative, intellectual, and – particularly in Tsvetaeva’s case – life sustenance in a world increasingly hostile to their work and to them personally. Perhaps someday a translator (team of translators!) will provide non-Russian readers access to these letters whose passion and beauty rival Tsvetaeva’s and Pasternak’s “public” writing. In the meantime,