The day after Valentine’s Day, the BBC offered the world an unexpected and unusual love story. Nearly 40 years ago, two Polish-born philosophers began a correspondence, one that continued for more than 30 years and ended with a visit the day before one of them died. 

He was Karol Wojtyła, who became Pope John Paul II. His correspondent was Anna-Teresa Tymieniecka, a Polish-American scholar, wife, and mother. After his death, she sold his letters to the National Library of Poland; they’ve been kept from the public eye since her death in 2014. 

The library released a statement suggesting that the letters reveal nothing interesting about the two or their feelings about each other: