Here are 15 of the most memorable quotes about freedom, liberty and compassion uttered by one of the greatest leaders America has ever had, Abraham Lincoln.

The National Freedom Day is not a public or federal holiday, but it holds great significance for millions of people who are descendants of American slaves.

The day commemorating President Abraham Lincoln's 13th Amendment proposal is designated as an observance, not a public holiday.

After gathering and offering quotes from Shakespeare and the Buddha, I asked people for ideas - other well-known people whose quotes they'd like to see. My daughter Rachel suggested Abraham Lincoln.