All 3 Uses

conscience
in
One Day in the Life of Ivan Denisovich
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Where's your conscience?' he shouted at me, all four bars on his collar shaking.†

conscience = feeling or appraisal of having personally behaved in a morally right or wrong manner
I learned from him that the regimental commander and the commissar were both shot in thirty-seven, no matter whether they were of proletarian or kulak stock, whether they had a conscience or not.†
*
After all, you can be put in the cells for keeping it, and only a man without a conscience would say: lend us your knife, we're going to slice some sausage, and you can go fuck off.†

Definitions:

(1) (conscience)
feeling or judgment of morally right or wrong personal behavior
(2) (meaning too rare to warrant focus)