Dr. Bell talks about how being gullible with others may cause one to be used, misled, or taken for granted. When people do not study or learn something for themselves, they find themselves at the mercy of others. Depending on anyone or anything for information is never good unless one can find that individual to be credible. Even credibility may not be enough because no one knows everyone's story. We all go through life and no one knows how they will respond or react in any given predicament.
Trusting others to reciprocate or treat us with the same measure is not healthy and can wind up leaving us drained and empty. Giving until it hurts does not require anyone else to give in the same measure. No one can blame anyone else for not loving with the same mindset.