Knowing some of the pitfalls we are subject to can help us plan defenses against deception. Here are some ways that we human beings deceive ourselves and each other, along with a few suggested remedies. Humans love stories, especially those centered on a strong, identifiable character. We like to embroider truth to make a better story. Look for telltale signs of embroidery, and make allowances.
Humans often allow themselves to be deceived as a way of avoiding threats.
Do not fear reassessing your values. Change may be inconvenient or even painful, but wallowing in ignorance is worse. We tend to think in terms of cause and effect. If we do not see a cause, our mind wants to invent one. Look out for this post hoc thinking, and replace it with further investigation to confirm truth.