What does the sentence "lying without conscience" mean? Who can explain it briefly, thank you!

Conscience generally refers to the moral line that a social group jointly recognizes and strives to maintain. Represents the moral level reached by a country and a social tribe. Different countries and regions have different perceptions of conscience.

Ignoring one's conscience is against the facts and original intention.

Lying is lying. To put it bluntly, this sentence means that you know this is the case, but you insist on saying that; Or say good things as bad things and bad things as good things. The score is so high, haha ~