The best and most beautiful things in the world cannot be seen nor even touched, but just felt in the heart.
Anne Sullivan Macy – born Johanna Mansfield Sullivan, American teacher for blind children (1866-1936), to her later known student Helen Keller (American deaf-blind writer, 1880-1968), from a letter to Reverend Phillips Brook (8. June 1891), published in “The Story of My Life” (1905)