If I had my way, this would be in front of every classroom in the world, one of those fifteen second public service announcements that gets shown several times a day, and one of the first phrases to teach infants as they learn to talk (right after teaching them to sing Who's my little whosit :) ).
A big lesson in growing up is realizing that no one, including us, has a monopoly on the truth. Many physical adults haven't learned this. They often end up damaging those around them.
Another lesson in maturing is realizing that what we know is the biggest obstacle to getting closer to the truth. If we know something, we've stuck a pin in it, killed it, and mounted it for the world to see. Unfortunately, it is no longer the truth.
Of course, if you want solid answers, that's okay. The world has gotten along, if not well, then passably, for millenia on the basis of solid, accepted answers. This may be related to our tendency to herd.
The tendency to herd is there for a reason. It allows us to exist, if not prosper. There's safety and security in being part of the herd. The people who leave the herd tend to have opprobrium heaped on them by the rest of the the herd.
You can't do that.
Everyone knows it's true.
No one will like you.
I don't understand you.
Often, those who leave the herd do suffer from their waywardness. They suffer physically. They suffer economically. They suffer socially. Usually, they wander off into the darkness, never to be seen again. Sometimes, they return and manage to change the direction of the herd, even if just a little bit. The herd is able to grow, or eat better, or have a wider range.