Alexander Oparin - The Origin of Life (1953)
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From our point of view, therefore, the modern process of evolution of living organisms is fundamentally nothing more than the addition of some new links to an endless chain of transformations of matter, a chain the beginning of which extends to the very dawn of existence of our planet.
It has now become quite clear that the origin of life was not the result of some "happy chance" as was thought till quite recently, but a necessary stage in the evolution of matter. The origin of life is an inalienable part of the general process of the development of the universe and, in particular, the development of the earth.