And humans do search for truth, even those who live the most terrible of lies. And when they find a more compelling truth, many find it morally and psychologically imperative to act on that truth. Today science and philosophy suggest that there is no ultimate, unchanging truth. Physicists note that the mere act of observing even subatomic particles changes their motions. How much more easily are affected human actions.
Logicians point out the impossibility of constructing perfectly logically consistent arguments.
It seems neither God nor natural law has created some objective, knowable reality. Moreover humans are incapable of knowing reality objectively. Therefore, while humans can understand more accurate truths, we will always recognize that even such truth evolves and that every individual will view it a little bit differently. Despite the seeming relativism of truth, humans must endeavor to discover the most accurate knowledge of the nature of reality and human purpose. These principles operate from the sub-atomic, chemical, astronomical, and planetary levels, up into the cellular, plant, animal and human levels.