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A great man (or woman) is too big to cram into a book-sized box. The best that you can do is offer a summary of the current state of knowledge about him, written from your own point of view–but you can never know everything there is to know. The day after your book is published, somebody may dig up an immensely important fact that you missed, or interpret the facts that you dug up in a way that makes more sense than your version. Biographical understanding is a journey without a destination, only stops along the way….