Because Abraham Lincoln said this...

Did you personally believe Abraham Lincoln said this?

It's also related to >> this <<

Well if you do, you are genius.

Did you know that? 

Abraham Lincoln died in April 15, 1865. wikipedia

whilst,

Internet was developed in the late 1960s. wikipedia


Again, do you see the real purpose of the quote?

Just because Abraham Lincoln's picture is next to the quote, doesn't mean he said that, hell, he ever said that.

Blow your mind for a second or two. Use your critical thinking ability.