Free Thinker, is someone who thought is free from all outside interference, that include Religion, Culture, Philosophy etc. In other word, Self-Centered thinking. As if the World is not already fill with enough selfish people, above is a Youtube video as a short guide for you to become a complete porcupine. And probably attain enlightenment. Great!
How to be completely Self Centered - WikiHow
You don't have click the above link. Think for yourself.