Forget all the formal decency of tolerance, and simply love your fellow humans. And the Self within you shall attain the highest pedestal of greatness, way higher than all the book-learned preachers in the world.
Say, you teach a five year old child a few verses from the Bible. And after memorizing them, he will become a part scholar in Christian theology. But that won’t make him realize what Jesus actually meant when he said 'love thy neighbor'.
Doctrines, no matter which path of human endeavor they come from, must serve the humans, not the humans serving the doctrines. “Love thy neighbor” - is a great doctrine, but more importantly, it is an unparalleled piece of magnificent human teaching – as such, whoever practices it, becomes a better human, a real human. On the other hand, there is another doctrine that says “God may purify the believers and destroy the disbelievers” – now would you, as a real conscientious human being, consider this one as a great beneficial doctrine or teaching for humanity? Far from being great, doctrines like this are the ones that compel the human society to forget its innate humanism.