Maria Montessori describes twelve days at sea (November 21-December 2, 1913) on the luxurious ocean liner, Cincinnati, sailing from Naples, Italy, to New York, NY, USA, with interesting people and stormy weather. Maria Montessori also contemplates on leaving her son and her father and the unknown adventure she has embarked on. 1913 Private Diary. Edited by Carolina Montessori and Joke Verheul.