Excaljnur
Green String
I think, to support your claim (which I agree with), it is important to explain Morality and speak of it less abstractly. For instance, when upon the development of human reasoning and organizing societies did we acquire the ability to, or discover the that we always could, distinguish decisions and actions as right or wrong, or good or bad? Perhaps we could be less abstract in our description of decisions and actions as good or bad and right or wrong and instead say better or worse. That is, to investigate when are we more inclined to act in a better matter as opposed to only a good manner with regard to claims of value. I believe studying morality and its origins can help us make this distinction clearer.It seems more than reasonable to assume that morality arose from our ability to reason and organize ourselves in societies. It is overwhelmingly obvious that societies cannot last unless certain rules are enforced. For example, if people are permitted to kill without justification, society will crumble. If people are permitted to steal whatever they want, society will crumble. So, why can't we credit our own species with the development of morals? I mean, there is no proof of objective morality, so why does there have to be a being that jammed these ideas into our minds?
Interestingly, research in neuroscience has revealed that claims of facts and claims of value are processed in the brain identically as beliefs. Now, the implications of these findings are presently debated, but it does reveal, as apparent, what many philosophers have theorized in the past, that all that we know (believe we know) is belief-based. And this leads me to say that understanding how morality evolved over time may, in fact, be better stated as how our understanding of morality has evolved because if it is based on belief, then we have had the capacity to be moral ever since we became sufficiently capable of reasoning to hold beliefs.
So the "evolution of morality" is really the ever evolving development of complicated belief systems where we can compound beliefs and engage in systematic thinking. Systematic thinking of the form of reasoning certain potential beliefs to be more salient than others. The ontology of beliefs is still debated in its origins and extent of involvement in our thinking, but the capacity to reason can be regarded as analogous or even a development of the human capacity to form beliefs and conceptualize them in reference to other beliefs. The complexity by which we can conceptualize beliefs is not shared by any other animals and would explain why most animals aren't considered to have a sense of morality. Most animals lack the capacity to form inter-connected belief systems that allow systematic thinking. The insights into degrees of complexity in conceptualizing beliefs have come from studying primates and marine mammals because they exhibit behaviors that require communication on a conceptual basis such as that of language.
To believe that "morality" can be given, implanted or revealed to someone is, IMO, to not understand that "morality" is a very highly abstract concept used to describe the less abstract (but still very abstract) sub-concepts (justice, emotion, reality, language, empathy, etc) that are referred to when speaking of morality. Since morality is based in holding beliefs, to speak of someone as having a "moral sense" would be to acknowledge that that person holds specific beliefs that influence their behavior.
In this case, I would argue for the claim that the human understanding of morality in the purview of evolution really began to take form when a person could first identify a set of beliefs they held with a general notion of approval and disapproval. Although I think conceptualizing notions of approval and disapproval is first understood through a single mind as associated with personal desires, the development of conceptualizing notions of approval and disapproval became more complicated and advanced more quickly through communication within groups. These advancements, in a sense of more complicated modes of communication, are what I would call the evolution of morality which would certainly be crediting our species with the development of morality. Societal evolution certainly enabled our species to understand morality in more complicated forms and distinctions.
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