Religion.
On a school notice board, an interesting mix of beliefs. Even "Unknowns and all others" have a place, but not atheism.
Imagine there's no Heaven
It's easy if you try
No hell below us
Above us only sky
It's easy if you try
No hell below us
Above us only sky
- John Lennon
Is it that hard to imagine?
And this is what ideal children (and adults) are supposed to be like in any religion.