What are Mother Teresa's favorite quotes?

Mother Teresa used to take the following book with her, wherever she went.

Come to me in the Blessed Sacrament: A prayer book of ten different eucharistic holy hours for private meditation and personal prayer in the presence of Jesus in the Blessed Sacrament by Vincent Martin Lucia

Also, she really enjoyed a book related to Blessed Charles de Foucauld, but I can't remember its title.