Cathy Burnham Martin said this quote

Liars are highly unlikely to admit their lies, never mind apologize for the hurt they’ve caused. Liars don’t genuinely apologize. Deceit has become their full-out lifestyle. They are centered on themselves with no thoughts of the consequences of their lies. In cowardly style, they tell more lies to try and cover their tracks. They are not good at admitting they actually have shortcomings.