Originally posted by NewGuy01
In the Jedi Path it notes that Yoda had began declining since he hit 600-700 years old.
Physically, or in the force? Palpatine was declining physically as of ROTJ, but he'd slaughter his youthful self on account of his mastery and increase of force power. Also, IIRC, one of the movie encyclopedia's attributes Yoda's power to living over 800 years, but I could be mistaken.
Do you have the quote? I know the quote about his claim to not being able to lift those stones is contradicted by his consistent showings.