Proofs of the Euclidean [parallel] postulate can be developed to such an extent that apparently a mere trifle … - Johann Heinrich Lambert

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I like to think how easily Nature will absorb London as she absorbed the mastodon, setting her spiders to spin the winding-sheet and her worms to fill in the grave, and her grass to cover it pitifully up, adding flowers - as an unknown hand added them to the grave of Nero.

Johann Heinrich Lambert

Proofs of the Euclidean [parallel] postulate can be developed to such an extent that apparently a mere trifle remains. But a careful analysis shows that in this seeming trifle lies the crux of the matter; usually it contains either the proposition that is being proved or a postulate equivalent to it.

Analysis, Lying, Matter, Remains, Seeming, Trifle

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I should almost therefore put forward the proposal that the third hypothsis (angle sum of a triangle less than two right angles) holds on the surface of an imaginary sphere.

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The first object of my endeavours was the means to become perfect and happy.

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