My opinion of others
Opinion of those who are close to us has a great influence on us to create prejudices towards others. What we must train ourselves is to use the opinions as tools at our disposition and not as spectacles through which we see the other person. If we use the opinions of others as eyeglasses, we may lose the opportunity to see the other person from your own perspective. You lose your freedom and you become conditioned. So, train yourself to use the feedbacks about persons as complementary or supplementary and not allow them to take the place of your direct and open experience with that person.