Knowledge will prove true.
One matches reality and the other matches the perception of others.
Sometimes nothing, sometimes everything.
What one knows can be proven. what one has been conditioned to think is just that. doesn't mean it is ba<x>sed on evidence. We know what gravity is. its been proven. we know the world is not flat. we have been conditioned to believe a certain thing like for instance a particular god/hellfire etc.
By the way when i read your question the first thought that entered my mind was religion
Analyze various 'evidences'
Its a good question. you seem to question things in life and evaluate it. :-)
Life and death.