Callous as they were to my suffering, they were equally callous to their own when anything befell them.

And this was due, I believe, first, to habit; and second, to the fact that they were less sensitively organized.

I really believe that a finely-organized, high-strung man would suffer twice and thrice as much as they from a like injury.
Tired as I was,--exhausted, in fact,--I was prevented from sleeping by the pain in my knee.

It was all I could do to keep from groaning aloud.
At home I should undoubtedly have given vent to my anguish; but this new and elemental environment seemed to call for a savage repression.

Like the savage, the attitude of these men was stoical in great things, childish in little things.