against one's conscience 昧心 ; 违背良心

do evil against one's conscience 昧着自己的良心干坏事 ; 瞒心昧己的解释

go against one's conscience 违背良心 ; 违背自己的良心

it goes against one's conscience 昧良心

words uttered against one's conscience 违心之论

assertion against one's own conscience 违背个人心意的言论