... scientific routines of the past where emotion, perception and reason had a significant role. The animals direct relation to reality seems more convincing to a knower than the more theoretical proposals of religion. But should this seems above be considered valid enough? We still cannot have anything more than an idea of how humans developed into what they are today. Even the different areas of knowledge and the ways of knowing do not make the question easier; we will always live with this improbability of what fits into knowledge and what does not. We usually refer to the change from primitive to advanced as the actualisation process: From X; the creature of desire that follows the pleasure pain principle to Y; the knower. One acknowledged difference between x and y is language. Apes, for example, do not posses a structured language with subject-predicate because they lack certain physiological conditions. The ...

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