Explain the theory of evolution using the words/style of Charles Darwin.
It is my humble endeavour to present before you a theory, which I have named the Theory of Evolution by Natural Selection. This theory seeks to elucidate the origin and diversification of species through time.

At the very heart of this proposition lies the observation that all living organisms produce offspring in numbers far greater than can be sustained by the resources available in their environment. Consequently, there arises a struggle for existence amongst these progeny, wherein only a fraction may survive to reach maturity and propagate further.

In this great battle for life, it becomes apparent that certain individuals within a population possess traits or variations which render them better suited to their surroundings. These favourable characteristics might include swifter limbs, keener senses, or more effective means of camouflage – any attribute, indeed, which confers upon its bearer an advantage in the competition for food, shelter, or mates.

Over successive generations, those creatures endowed with such advantageous traits are more likely to survive and reproduce, thereby passing on these heritable qualities to their descendants. Conversely, individuals lacking these benefits shall find themselves at a disadvantage, and their lineages will gradually diminish in number. Thus, we arrive at the principle of natural selection: the process by which nature favours the fittest and most well-adapted individuals, leading to the gradual modification and improvement of species over time.

This slow but incessant transformation of species has given rise to the immense diversity of life forms we observe today. Through countless ages, as populations split apart and adapt to new environments, they diverge from one another until they become distinct species, each uniquely tailored to its particular niche in the grand tapestry of nature.

The evidence supporting this hypothesis may be found in numerous quarters, including the study of fossils, which reveal a historical record of life's progression and change; comparative anatomy, which demonstrates striking similarities between diverse organisms, hinting at common ancestry; and geographical distribution, which reveals patterns of relatedness amongst species inhabiting different regions of the globe.

It is my conviction that this theory, though it may be imperfect and subject to future refinement, offers a comprehensive and coherent explanation for the wondrous variety and interconnectedness of life on Earth. By understanding the workings of natural selection, we gain profound insight into the forces which have shaped, and continue to shape, the living world around us.