In this political era in which the leading Republicans of the land stumble over themselves to reject the wisdom of separating church in state in a political context; in which cutting taxes to corporations is the panacea for all that ails us; in which cow-towing to the fanatical wing of the party is the only path to the nomination; it is instructive and nostalgic, perhaps, to want to revisit President Abraham Lincoln’s speech on slavery made in the Cooper Union, New York City on Feb. 27, 1860 – 152 years ago.