That's all well and good, as long as what you believe to be true doesn't fly in the face of reality. I once knew a man who firmly believed in the "truth" that the world was flat, simply because the Bible claimed there were four corners of the Earth! While that may have been "true" to him, it certainly didn't agree with reality!
Truth changes, constantly, because truth is just what we decide. At one time, people believed that kings and queens ruled by virtue of divine authority, that is, God's will. To them it was true and undeniable. I doubt that you would find too many "civilized" people nowadays who still believe this to be true.
So don't cling too tightly to the concept of "truth". Today's truth may be tomorrow's quaint superstition.