In 1971, the children’s librarian of Troy, Michigan’s new public library wrote dozens of letters to notable figures across the globe, asking them to address the children of Troy and speak about the importance of libraries, books, and reading. Among the replies was this note from Armstrong:
"Through books you will meet poets and novelists whose creations will fire your imagination. You will meet the great thinkers who will share with you their philosophies, their concepts of the world, of humanity and of creation. You will learn about events that have shaped our history, of deeds both noble and ignoble. All of this knowledge is yours for the taking… Your library is a storehouse for mind and spirit. Use it well."