Which truth is that?
There are damn too many different religions and philosophies.
And every religions and philosophies around the world claimed to have this "truth", often in opposition to each other, so they all can't be "true".
There are some religions and even few philosophies that claimed they have "absolute truth" or "ultimate truth". Personally, I think they (those who make such extravagant claims) have nothing more than BS. No, seriously, how can any group that have "ultimate" this or "absolute" that, be so sure of that, without being biased?
If people truly understood the words - "absolute" or "ultimate" - then everyone would and should see and agree with it. In the real world, everyone cannot be agreement, which means it is not truly absolute or ultimate.
You have religions or even sects within those religions arguing over others the scriptures, the dogmatic teachings, customs and practices, even will go so far as physically eliminating the other parties that disagree with them.
You will have philosophers doing the same things as religions, arguing incessantly, and putting their own brand of worldview at the expenses of others they dos agree with.
Let face it, willamena. Every philosophers and religious people (bishops, priests, clerics, or ordinary followers) will always put their own views or beliefs ahead of others, so each are subjected by their own egos and biases over what is the truth.
That being the case, how do you determine which is true? Does one religion or one philosophy give us a yardstick of how to measure the trueness of others? If so, which would you pick?
I am not saying that each don't have their own merits, and some have views and beliefs may be universal, but even when we agree with something, we may not agree with in other matters.
Heck, willamena. I don't follow strictly with just one philosophy.
Philosophically, with regards to religion, I am agnostic. I can stick strictly to being in the middle, or I can lean towards "theistic" or towards "atheistic", depending on what exactly we are discussing or arguing over.
Philosophically, with regards to cultures, I can see the pros-and-cons of east and west. I can choose whichever little points of view that best suit me, so I don't exclusively follow just the one.
And it is the same with philosophies that deal with rationality and intellect, where I pick which suit me from whole range of different philosophies. I don't have to adhere with just the one.
It is like my taste in arts and music. I can like certain styles or genres over others, while disliking others of the very same style or genre. It depends on what pleases my eyes or ears.
So whose bloody "truth" are you talking about? And why do you think they have the "truth"?
My point can be summarised to these:
If you have everyone, and I mean EVERYONE, agree with a single truth, then you just may have the truth. But the moment you have one person who is skeptical or in doubt, and disagree with this single view, then the "truth" may not be the truth at all.