He could write things like this:
… Presently he found he was reading the same line twice, so he shut everything into his writing desk and went to bed.
Lying there with the fine steady heave of the sea rocking him with a diagonal motion he mused for a while. Sleep did not come. Far from it. ‘It is true that Clarissa Oakes is not really pretty,’ he said, ‘but how I wish she were lying here beside me.’ A moment later he slipped out of his cot, put on shirt and trousers and went on deck. A dark, dark night, with warm rain sweeping across from forward; four hands at the wheel, West leaning on the barricade amidships, most of the watch under the break of the forecastle. He walked aft and stood there looking at the glow of the binnacle and the white water racing by under the frigate’s lee; and in time the strong wind and rain blowing his long hair out behind like seaweed and soaking him from head to foot, calmed his spirit.
— Patrick O’Brian, The Truelove, Chapter Four.