Quote 37
"Yes," he said. "Yes," and shipped his oars without bumping the boat. He reached out for the line and held it softly between the thumb and forefinger of his right hand. He felt no strain nor weight and he held the line lightly. Then it came again. This time it was a tentative pull, not solid nor heavy, and he knew exactly what it was. One hundred fathoms down a marlin was eating the sardines that covered the point and the shank of the hook where the hand-forged hook projected from the head of the small tuna. (2.56)
The old man’s prowess is displayed through his knowledge and technical skill in fishing.
Quote 38
"Thank you," the old man said. He was too simple to wonder when he had attained humility. But he knew he had attained it and he knew it was not disgraceful and it carried no loss of true pride. (1.36)
In The Old Man and the Sea, we see that pride and humility are not mutually exclusive.
Quote 39
"And the best fisherman is you."
"No. I know others better." (1.134, 1.135)
The old man is humble about his abilities.