I'm sure TPG could handle this in a more distilled fashion:
Build your thoughts upon your own decisions and experience. Regard all outside input as data to sort, process and test. Information is information. What you hold allegiance to, there you will find conflict. So, don't. Any time you feel sure of something, don't be. It will sound strange from a paranoid, but... Uncertainty is the most assured thing. Put your mind in superposition of thought. As much paradox you can hold onto, do.