how does pride "blind" santiago?

Hemingway's treatment of pride in The Old Man and the Sea is ambivalent. A heroic man like Santiago should have pride in his actions, and as Santiago shows us, "humility was not disgraceful and it carried no loss of true pride" (14). At the same time, though, it is apparently Santiago's pride which presses him to travel dangerously far out into the sea, "beyond all people in the world," to catch the marlin (50). While he loved the marlin and called him brother, Santiago admits to killing it for pride, his blood stirred by battle with such a noble and worthy antagonist. Some have interpreted the loss of the marlin as the price Santiago had to pay for his pride in traveling out so far in search of such a catch. Contrarily, one could argue that this pride was beneficial as it allowed Santiago an edifying challenge worthy of his heroism. In the end, Hemingway suggests that pride in a job well done, even if pride drew one unnecessarily into the situation, is a positive trait.

killing for pride is a strong sentence for Santiago.