Word to mouth spreads ignorance

“It only takes a mouth to have an opinion. It doesn’t take a brain.” -Tim Marks

We’re too quick to take what other people say and consider it true for us and that is due to a complete ignorance on the subject with little desire to learn more on it. People can take a lie and make it sound like the truth. A lie, that sounds like the truth, is still a lie.

There's a decline in religion beliefs and it's not because we became smarter, or “discovered” new things with science. It’s because society can’t pick up the bible and read it to have their own opinion. People, with no background in religion, take what their neighbour say and make it true for themselves.
I lost count of the amount of people who told me “I don’t believe in religion because I believe in science”. After talking to them for a while, they have no background in science nor religion and it turns out they just listened to what the mass said. A thousand people believing in something wrong doesn't make it right. Do your own research and have your own opinion.

In order to be knowledgeable, you have to have knowledge. Otherwise, what you say is an opinion.

This is just an example, this is true in every area of life. Every time someone give me “tips” that’s my cue to ask about his background on the subject.