Part 3 - 'LET US HAVE FAITH THAT RIGHT MAKES MIGHT, AND IN THAT FAITH, LET US, TO THE END, DARE TO DO OUR DUTY AS WE UNDERSTAND IT.' This was the ringing peroration of Abraham Lincoln's 1860 speech in New York City that established his reputation as a powerful antislavery voice and started him on the road to the White House. Listen to Harold Holzer, author of the award-winning Lincoln At Cooper Union: The Speech that Made Abraham Lincoln President analyze this long neglected but critical oratory.