Max Beckmann, Barbara Copeland Buenger (1997). “Self-Portrait in Words: Collected Writings and Statements, 1903-1950”, p.302, University of Chicago Press
Swami Vivekananda (1926). “The Complete Works of the Swami Vivekananda, Comprising All His Lectures, Addresses and Discourses Delivered in Europe, America and India: All His Writings in Prose and Poetry, Together with Translations of Those Written in Bengali and Sanskrit; Reports of His Interviews and His Replies to the Various Addresses of Welcome; His Sayings and Epistles,--private and Public--original and Translated; with an Index; Carefully Revised & Edited”