Head of Poland's National Library, Tomasz Makowski, shows one of the many letters from Pope John Paul II to a Polish-America philosopher, Anna-Teresa Tymieniecka, that are kept at the library in Warsaw, Poland, Tuesday, Feb. 16, 2016. The library bought hundreds of letters for a "seven-digit" amount in 2008 from the woman, the Polish-born American thinker Anna-Teresa Tymieniecka, and is planning to have them published in the coming years. (AP Photo/Czarek Sokolowski)