Notoriously unreliable and digressive in structure, it is nonetheless the principal contemporary source for information about the author's life.[citation needed] It tells about his schooling in Russian Poland, his sailing in Marseille, the influence of his Uncle Tadeusz, and the writing of Almayer's Folly. It provides a glimpse of how Conrad wished to be seen by his British public, as well as being an atmospheric work of art.[citation needed] The "Familiar Preface" Conrad wrote for it includes the often quoted lines: "Those who read me know my conviction that the world, the temporal world, rests on a few very simple ideas; so simple that they must be as old as the hills. It rests notably, among others, on the idea of Fidelity."