I must do it because my conscience tells me it is necessary. 我必须做这件事，因为我的良心告诉我需要这样做。
In my conscience I believe the baggage loves me, for she never speaks well of me herself nor suffers any body else to rail at me. 凭良心说，我相信那妞儿是爱上我的，为的是她自己决不称赞我一句，也决不容许人家诋毁我嘛。
It's still on my conscience that I didn't warn her in time. 我未能及时提醒她，这事至今使我耿耿於怀。
