“Darwin's theory of evolution by natural selection is the only workable explanation that has ever been proposed for the remarkable fact of our own existence, indeed the existence of all life wherever it may turn up in the universe.” MayFactsTurnsUniverseNaturalExistenceTheoryEvolutionExplanationRemarkableSelectionNatural SelectionTheory Of Evolution Book:The Theory of Evolution Source: The Theory of Evolution
“The basic formulation, or bare-bones mechanics, of natural selection is a disarmingly simple argument, based on three undeniable facts (overproduction of offspring, variation, and heritability) and one syllogistic inference (natural selection, or the claim that organisms enjoying differential reproductive success will, on average, be those variants that are fortuitously better adapted to changing local environments, and that these variants will then pass their favored traits to offspring by inheritance).” FactsThreeEnjoyNaturalSimpleEnvironmentAtheismArgumentClaimsAverageBonesLocalsTraitsOrganismsMechanicSelectionInheritanceVariationAdaptedNatural SelectionOffspringInference Author:Stephen Jay Gould
“You put three facts together - that all organisms produce more offspring that can survive, that there's variation among organisms, and that at least some of that variation is inherited - and the syllogistic inference is natural selection.” FactsTogetherThreeNaturalProduceOrganismsSelectionVariationNatural SelectionOffspringInference Author:Stephen Jay Gould