The speaker is Abraham Lincoln. “When someone asked if he had ever doubted the North’s final victory he shot back, ‘Never for a moment.’  He quoted Seward, saying ‘that there was always just enough virtue in this republic to save it; sometimes none to spare, but still enough to meet the emergency, and he agreed with Mr. Seward in this view.”

From the outstanding Grant, by Ron Chernow, page 479.  Mr. Lincoln and Mr. Seward’s sentiment applies today.