Asked which of his books he would most want to see rescued if catastrophe should come upon the world, Rudolf Steiner replied without hesitation: 'The Philosophy of Freedom'.
--The Ultimate Communion of Mankind by Karen Swassjan
In a conversation with Rudolf Steiner that took place in April 1922 in The Hague Walter Johannes Stein asked,
“What will remain of your work in thousands of years?
Rudolf Steiner replied: “Nothing but the Philosophy of Freedom,” and then added: “But everything is contained in it. If someone realizes the act of freedom described there, he finds the whole content of Anthroposophy”.
–May Human Beings Hear It! by Sergei O. Prokofieff
Rudolf Steiner: "Anyone interested in looking for them will find the basic principles of Anthroposophy already enunciated in this book."