But no, he never would have noticed it.

His upright, honest nature, though capable of great reserve, was utterly incapable of false pretense, deceit, or self-interested diplomacy.

And what was impossible in himself he never suspected in other people.

He thought his cousin shallow sometimes, but good-natured; a little worldly, perhaps, but always well-meaning.

That Captain Bruce could have come to Cairnforth for any other purpose than mere curiosity, and remained there for any motive except idleness and the pursuit of health, did not occur to Lord Cairnforth.
"It is on the subject that you so much dislike my talking about--my own death; a probability which I have to consider, as being rather nearer to me than it is to most people.