More loose thoughts for a rainy Monday

Reading some posts elsewhere, I find missing an understanding of what's life. How you define Life? I mean, before we go into the semantics of sexual reproduction, which is a late arrival in the scene of life reproduction (in terms of timeline of life on Earth). There lays what we call the epistemological problem of biology. One aspect is abiogenesis[1], that's the transition from organized matter (organization which arouses exclusively based in the chemical properties of the different elements, the hundred plus different atoms and all the isotopes present in Universe, combining in all the possible forms allowed by those properties, --so far no need to speculate where they came from--), into matter which has developed the ability to replicate its organization and where for first time we can observe the phenomena of death. Granted that in that sense we created the concept of life and death to represent what we think we are seeing in nature; although such concepts are intimately associated with real aspects of nature, they aren't the aspects themselves but our inside perception of them.
The second part of the epistemological problem of biology, is the relationship between the original "live entity (subject to the phenomena of death)" and all the different "live species" we observe today: that's the quod libet which the theory of evolution addresses and which amounts to the proposition that all the forms of life didn't have independent genesis in each case but derived from changes in the original "live entity" in a process of differentiation and speciation[2].
So far our knowledge has been evolving without the need of introducing or demanding the role of an ill defined super-entity in the analysis, what proves that the claim of creationism with their "necessary god or intelligent entity" is bogus and superfluous.

[1] Abiogenesis (from the Greek, a-bio-genesis, "non biological origins") is, in its most general sense, the generation of life from non-living matter. Today the term is primarily used to refer to hypotheses about the chemical origin of life, such as from a primordial sea or in the vicinity of hydrothermal vents, and most probably through a number of intermediate steps, such as non-living but self-replicating molecules (biopoiesis). More in http://en.wikipedia.org/wiki/Abiogenesis
[2] Speciation is the evolutionary process by which new biological species arise. There are four modes of natural speciation, based on the extent to which speciating populations are geographically isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry or laboratory experiments. More in http://en.wikipedia.org/wiki/Speciation