Ernst Haeckel Quotes

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  • The cell never acts; it reacts.

    Cells  
    Generelle Morphologie
  • The real cause of personal existence is not the favor of the Almighty, but the sexual love of one's earthly parents.

    Real   Parent   Favors  
    Ernst Haeckel (1904). “Wonders of life”
  • Civilization and the life of nations are governed by the same laws as prevail throughout nature and organic life.

    Ernst Haeckel (1916). “Eternity; World-war Thoughts on Life and Death, Religion, and the Theory of Evolution”
  • Phylogeny and ontogeny are, therefore, the two coordinated branches of morphology. Phylogeny is the developmental history [Entwickelungsgeschichte] of the abstract, genealogical individual; ontogeny, on the other hand, is the developmental history of the concrete, morphological individual.

    Science   Hands   Two  
  • Man is not distinguished from [the animals] by a special kind of soul, or by any peculiar and exclusive psychic function, but only by a higher degree of psychic activity, a superior stage of development.

    Men   Animal   Psychics  
    ernst haeckel “the riddle of the universe”
  • Where faith commences, science ends. Both these arts of the human mind must be strictly kept apart from each other. Faith has its origin in the poetic imagination; knowledge, on the other hand, originates in the reasoning intelligence of man. Science has to pluck the blessed fruits from the tree of knowledge, unconcerned whether these conquests trench upon the poetical imaginings of faith or not.

    Faith   Art   Blessed  
    Ernst Haeckel (1887). “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”
  • Man is not above nature, but in nature.

    Men  
    Ernst Haeckel (1897). “The evolution of man: a popular exposition of the principal points of human ontogeny and phylogeny”
  • There is no doubt that the course and character of the feared 'European war'... will become the first world war in the full sense of the word.

    War   Character   Doubt  
    Indianapolis Star, 20 Sept. 1914.
  • Nothing is constant but change! All existence is a perpetual flux of "being and becoming!" That is the broad lesson of the evolution of the world.

    Life   Change   Science  
    Ernst Haeckel (1904). “Wonders of life”
  • The nucleus has to take care of the inheritance of the heritable characters, while the surrounding cytoplasm is concerned with accommodation or adaptation to the environment.

  • The succession of individuals, connected by reproduction and belonging to a species, makes it possible for the specific form itself to last for ages. In the end, however, the species is temporary; it has no "eternal life." After existing for a certain period, it either dies or is converted by modification into other forms.

    Life   Science   Age  
    Ernst Haeckel (1904). “Wonders of life”
  • 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.

    ernst haeckel “the riddle of the universe”
  • As our mother-earth is a mere speck in the sunbeam in the illimitable universe, so man himself is but a tiny grain of protoplasm in the perishable framework of organic nature.

    Mother   Men   Arrogance  
    "The riddle of the universe".
  • The whole of organic nature on our planet exists only by a relentless war of all against all. ... The raging war of interests in human society is only a feeble picture of an unceasing and terrible war of existence which reigns throughout the whole of the living world.

    War   World   Reign  
  • In the course of individual development, inherited characters appear, in general, earlier than adaptive ones, and the earlier a certain character appears in ontogeny, the further back must lie in time when it was acquired by its ancestors.

  • Ontogeny re-capitulates phylogeny.

  • 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.

    Science   Simple   Men  
    Ernst Haeckel, Sir Edwin Ray Lankester, L. Dora Schmitz (1906). “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”
  • Among the Spartans all newly born children were subject to a careful examination or selection. All those that were weak, sickly, or affected with any bodily infirmity, were killed. Only the perfectly healthy and strong children were allowed to live, and they alone afterwards propagated the race.

    Strong   Children   Race  
    Ernst Haeckel, Sir Edwin Ray Lankester, L. Dora Schmitz (1906). “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”
  • By ecology we understand the total science of the connections of the organism to the surrounding external world.

  • Mental differences between the lowest men and the animals are less than those between the lowest and the highest man.

    Ernst Haeckel, Sir Edwin Ray Lankester, L. Dora Schmitz (1906). “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”
  • 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).

    Views   Law   Opposites  
  • It is, however, a most astonishing but incontestable fact, that the history of the evolution of man as yet constitutes no part of general education. Indeed, our so-called "educated classes" are to this day in total ignorance of the most important circumstances and the most remarkable phenomena which Anthropogeny has brought to light.

    Ignorance   Science   Men  
    Ernst Haeckel (1883). “The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny”
  • Politics is applied biology.

    "Ernst Haeckel: the art of evolution - in pictures" by Rainer Willmann, www.theguardian.com. November 1, 2017.
  • We are compelled by reflection to recognize that God is not to be placed against the material world [as in Christianity], but must be placed as a 'divine power' or 'moving spirit' within the cosmos itself ... All the wonderful phenomena of nature around us, organic as well as inorganic, are only various products of one and the same original force.

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