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Ernst Haeckel Quotes

Philosopher

German philosopher, biologist, artist, born on February 16, 1834, and died on August 9, 1919. Ernst Haeckel is renowned for his contributions to the fields of evolution, morphology, cytology, and the philosophy of natural sciences.

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Famous Ernst Haeckel Quotes

“I established the opposite view, that this history of the embryo (ontogeny) must be completed by a second, equally valuable, and closely connected branch of thought - the history of race (phylogeny). Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation... 'ontogenesis is a brief and rapid recapitulation of phylogenesis, determined by the physiological functions of heredity (generation) and adaptation (maintenance).”

“An irrefutable proof that such single-celled primaeval animals really existed as the direct ancestors of Man, is furnished according to the fundamental law of biogeny by the fact that the human egg is nothing more than a simple cell.”

Men Humans Facts Law Science Simple Animal Evolution Direct Fundamentals Proof Cells Eggs Ancestor

Book:The History of Creation: Or The Development of the Earth and Its Inhabitants by the Action of Natural Causes. A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular. From the 8th German Ed. of Ernst Haeckel ... The Translation Rev. by E. Ray Lankester

Source: The History of Creation: Or The Development of the Earth and Its Inhabitants by the Action of Natural Causes. A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular. From the 8th German Ed. of Ernst Haeckel ... The Translation Rev. by E. Ray Lankester

“Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.”

Action Law Opinion Connections Arise Branches Closest Adaptation Reciprocal Heredity Recapitulation

Book:the riddle of the universe

Source: the riddle of the universe

“Civilization and the life of nations are governed by the same laws as prevail throughout nature and organic life.”

Law Nations Civilization Organic Life

Book:Eternity; World-war Thoughts on Life and Death, Religion, and the Theory of Evolution

Source: Eternity; World-war Thoughts on Life and Death, Religion, and the Theory of Evolution