Abraham Lincoln is probably the most quoted and quotable president in American history. And as is the case with all famous persons, Lincoln is sometimes credited with words he didn’t utter. Probably the most famous example that can be found is this:
For a variety of Lincoln quotes by topic and with the source included, please see below.
Leadership
"If we never try, we shall never succeed." - Lincoln letter to General George B. McClellan, October 13, 1862