In a way, Buddha predicts the Internet:

“Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and common sense.”
~Buddha

While I can’t really disagree with this, it is quite possible to abuse this philosophy. If one simply uses their own pre-installed beliefs, prejudices, attitudes, and such to determine whether something is true or valid, that can easily lead one to only take in advice one already agrees with. This is tricky. Sometimes, what one needs is to hear or read something that completely disagrees with what one already believes or knows in order to escape a rut, have their eyes unlidded, or become aware something one is or has been missing in one’s life.

via Knowing Which Advice is Right | Tiny Buddha: Wisdom Quotes, Letting Go, Letting Happiness In.