Reason (the conflict between truth versus false) allows those who offered the beliefs you reason about, to control both sides of every conflict through the use of contradiction, because it keeps the fictitious conflict among yourselves going, while others control the reality around you through your ignorance.

Your consent to believe in "truth" allows others to use "lies" against everyone, and your consent to reasoning about truth versus false, protects the actions of those who offered you both "truth" and "false" information.

It's not what you believe, but that you consent to believe the offer of another, that represents your choice to ignore reality for fiction.