A heathen doesn't have to prove anything, we know the truth. I don't call that a self-righteous attitude, because what I tell others is not for my benefit, it's for theirs and those around them.
I didn't write the rules, I'm just saying if you read a holy book - you'll realize it's a farce.
I have the greatest respect for others, if I didn't I wouldn't be telling them about life as a heathen. The only reason I do this is because I care about the quality of their life.
I bet this puts me over the line?
I cross that line all the time, since it is my duty and job to let others know the joy they are missing by not being a heathen.
And from the testimony of 1000's that did know and later rejected Christ or god (or never accepted him in the first place), we know as a fact that people with him are missing things in their life. But in the end it is always the person's choice to accept or reject, but it is the duty and obligation of the heathen to give those who wonder the information so that you decide.