Do not be fooled by what you hear. It is the human condition to both lie and accept what it hears as truth, but that is the fearful human who lies and believes untruths. That is the fool. This is not a weakness but a strength in hiding. For even such a fool seeks to maintain balance and so should be studied and considered a work in progress, a seeker. The liar/fool must constantly pay attention, must constantly string more lies to keep a falsehood alive, honing skills of value in the process. But would it not be better to put such skills to better use, seeking to align with truth and honesty, going where the spirit leads?
Dismiss no one; dismiss nothing. Consider everything you hear, but make your own decisions for yourself regarding your own life and how you want to live it, regarding your own actions and what is best for you. Take steps along your path of heart rather than along a path of deceit or discontent, rather than choosing ignorance. Guide yourself with wisdom and truth. Where are you not seeing clearly, being confused or blinded? How are you fooling yourself?