Faith and Doctrine: Is anything too sacred to investigate?

"If a faith will not bear to be investigated; if its preachers and professors are afraid to have it examined, their foundation must be very weak."

--Apostle George A. Smith, Journal of Discourses, Volume 14, Page 216

"I think a full, free talk is frequently of great use; we want nothing secret nor underhanded, and for one I want no association with things that cannot be talked about and will not bear investigation."
--President John Taylor, Journal of Discourses, Volume 20, Page 264

"Convince us of our errors of doctrine, if we have any, by reason, by logical arguments, or by the word of God, and we will be ever grateful for the information, and you will ever have the pleasing reflection that you have been instruments in the hands of God of redeeming your fellow beings from the darkness which you may see enveloping their minds."
--Apostle Orson Pratt, The Seer, Page 15

The Premise (Belief taken solely on faith):

I think that most followers of most belief systems have the notion that there are certain elements within their system of doctrine that must be taken on faith, without question and without doubt. I suppose this idea works as long as everybody in every facet of a society also accepts the same system of beliefs--but it breaks down in the interface between believers of one sect and believers of another sect.

Where monumental differences in belief can be seen, there is monumental room for intolerance and mistrust, bigotry and hatred. One belief system might demand its female followers to wear head scarves, while all the others think that it is important to be able to see people's faces (for a multitude of reasons, from the ease of terrorism to feminine rights). If neither side of the belief issue allows themselves to logically analyze and investigate their beliefs, then there can be no reconciliation between the two, and mutual coexistence will be painful until some common ground can be reached.

One belief system might suggest that consenting adults should have the rights to marry whomever they choose, regardless of their race or gender. Other belief systems might try to prevent those consenting adults from said marriage. Regardless of the origin of their respective differences in belief, some consensus must be reached if both sides of the belief divide are to coexist in harmony within a society. In order for that consensus to be reached, both sides must agree to open up their minds and allow their beliefs to be investigated rationally and logically—in such situations, there is no room for emotion which only causes potentially explosive interactions to become exponentially more volatile.

Summary:

In short, living in a society of mixed beliefs as we do, it is important that we investigate our own personal beliefs with reason and logic, and expect others to do the same. It is then, and only then that true coexistence, tolerance and mutual respect can occur. And a society without these cannot be a cohesive society for long.