Lifes but a walking shadow a poor player That struts and frets his hour upon the stage And then is heard no more It is a tale Told by an idiot full of sound and fury Signifying nothing?

Macbeth says this, to the Doctor...or the Messenger. But it means that life is like a poor actor who stresses over his few lines, then dies and is never mentioned again. So while life is dispoable, items are not, they live much longer than a human's life, like a legacy. Life is meaningless, told by an idiot, full of noise and fury, which signifies nothing.