"We are not grand because we are at the top of the food chain or because we can alter our environment - the environment will outlast us with its unfathomable forces and unyielding powers. But rather than be bound and defeated by our insignificance, we are bold because we exercise our will anyway, despite the ephemeral and delicate presence we have in this desert, on this planet, in this universe."

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But just in proportion as this process of extermination has acted on an enormous scale, so must the number of intermediate varieties, which have formerly existed, be truly enormous. Why then is not every geological formation and every stratum full of such intermediate links? Geology assuredly does not reveal any such finely graduated organic chain; and this, perhaps, is the most obvious and serious objection which can be urged against the theory. The explanation lies, as I believe, in the extreme imperfection of the geological record.

— Charles Darwin