Do you realize when you assume you are always right and everyone else is wrong, then you shut yourself off? Yet, seek to understand those with whom you disagree. Why? You learn to understand yourself better.
Understand when you close your mind out of fear that someone else might prove you wrong, you are certainly not showing much confidence. In fact, they will help you refine and strengthen your own opinions.
Beginning today begin to give your opinions and beliefs the respect they deserve by opening them up to challenge and criticism. Why? This will make each one even stronger, more sincere, and of more value to another.