For a long time now eating had bored him and he never carried a lunch.
He had a bottle of water in the bow of the skiff and that was all he
needed for the day. 去书内
The old man had become so tired of food that it made people wonder if he
could really survive at sea. And considering that fishing is such an
energy-consuming activity, could he really manage it?
This sentence show the old man had not caught any fish for a long time.
However he was sure that he would caught fish today. So the bottle of
water was all he needed for the day.