What Presidents made these statements?

Question

Thomas Jefferson once said, 'We should never judge a president by his age, only by his works.' And ever since he told me that, I stopped worrying.

"Leave nothing for tomorrow which can be done today

"It depends on what the meaning of the words 'is' is

On the subject of Osama bin Laden... we will track him down. We will capture him. We will bring him to justice, and I will follow him to the gates of h**l.

Answer 1

The first one is Ronaldus Maximus Reagan

The next is Honest Abe

The next is Slick Willie

and the last one is not a President; John McAmnesty...although he really wants to be.

Answer 2

Lincoln

Billy Jeff