Abraham Lincoln (February 12, 1809 – April 15, 1865) was an American statesman and lawyer who served as the 16th President of the United States from March 1861 until his assassination in April 1865. Lincoln led the United States through its Civil War—its bloodiest war and perhaps its greatest moral, constitutional, and political crisis. In doing so, he preserved the Union, abolished slavery, strengthened the federal government, and modernized the economy.Read about Abraham Lincoln in Wikipedia
My paramount object in this struggle is to save the Union, and is not either to save or to destroy slavery. If I could save the Union without freeing any slave I would do it, and if I could save it by freeing all the slaves I would do it; and if I could save it by freeing some and leaving others alone I would also do that. What I do about slavery, and the colored race, I do because I believe it helps to save the Union; and what I forbear, I forbear because I do not believe it would help to save the Union.
It is better then, to save the work while it is begun. You have done the labor; maintain it - keep it. If men choose to serve you, go with them; but as you have made up your organization upon principle, stand by it; for as surely as God reigns over you, and has inspired your mind, and given you a sense of propriety, and continues to give you hope, so surely will you still cling to these ideas, and you will at last come back after your wanderings, merely to do your work over again.