The Theme of Endurance
The Old Man and the SeaThe novel explores endurance as a central virtue, embodied by Santiago's physical and mental stamina.
increasing
Bearing strength in each event
decreasing
The Eighty-Four Days

The Eighty-Four Days
A Test of Patience
Santiago has gone eighty-four days without a fish. He is not defeated. He says, "I may not be as strong as I think, but I know many tricks and I have resolution." Endurance is his main asset.
The Boy's Faith
Manolin believes in him. The old man's endurance inspires loyalty. Even when mocked, he does not give up. He goes out each day.
This sets the stage for the endurance required for the marlin.
The Physical Ordeal

The Physical Ordeal
The Body's Limits
Santiago endures the line cutting his hands, the cramp, the lack of sleep, the hunger. He pushes his body to the brink. He does not give in.
The Mental Strenght
He talks to himself, to the fish, to the birds. He thinks of baseball and the hand game. He uses every mental trick to keep going. He says, "I'll stay with you until I am dead."
This endurance is the core of the story.
The Endurance of the Spirit

The Endurance of the Spirit
The Unbroken Man
Santiago is physically broken, but his spirit is intact. He says, "They beat me, Manolin. They truly beat me." But he also says, "A man can be destroyed but not defeated."
The Legacy
He will fish again, with the boy. His endurance is a lesson for Manolin. The theme of endurance is the ultimate message of the novel.
This is the philosophical core of the work.
beginning of the story
the three days at sea
after the return