I have been driven many times upon my knees by the overwhelming conviction that I had nowhere else to go. My own wisdom and that of all about me seemed insufficient for that day.
Source, in full
Noah Brooks, scribe for the Sacramento Union, writing in the Harper’s Weekly for July 1865, 3 months after Lincoln had died, reported that the Lincoln once said this, at an unspecified date; as reported in"Did Abraham Lincoln Actually Say That Obama Quote?" by James M. Cornelius, The Daily Beast (9 August 2012)