...Property, acting by exclusion and encroachment, while population was increasing, has been the life-principle and definitive cause of all revolutions... 
P. J. Proudhon 「What is Property?」
...The external navel in theskin is the definitive point of the closing of the ventral wall; this isvisible in the developed body as a small depression...
Ernst Haeckel 「The Evolution of Man」
ランダム例文：
rating anarchical gleam
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