Approximately 16,000 books have been written about Abraham Lincoln, arguably our most revered President. Is there possibly anything new to say about him? Surprisingly, the answer is: yes! In this highly original book, David Hirsch and Dan Van Haften offer a fresh perspective on Lincoln’s oratory, as a lawyer and as a politician. The conventional wisdom is that Lincoln used colorful phrases, flowery oratory, and funny stories to persuade and charm his listeners. Hirsch and Van Haften offer a radically different perspective: that the key to Lincoln’s success was intellectual fidelity to the principles of Euclid, the Greek mathematician and logician.