We have just released our eBook in Kindle format with over 40,000 famous quotations categorized in over 1,300 topics. (also available in print Volume I & II paperback)
Ignorance is the first requisite of the historian -- ignorance, which simplifies and clarifies, which selects and omits, with a placid perfection unattainable by the highest art.
~ Lytton Strachey - [History and Historians]