TRUE SABIDA: This is a principle of law, which should be interpreted as " knowledge that has the facts both its causes as its consequences without the ability to claim ignorance then except by reason of deception. "GOOD FAITH SAVED: "It refers to that the fact prevailed a provision of doing things correctly from the beginning, without that there was nothing malicious or hidden. (In Guatemala, in the commercial code, Decree 2-70, are two fundamental principles that must be observed in commercial legal business and commercial things. )