Ernst Haeckel Quotes

23 quotes in 446 categories

• 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…
• 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.…
• 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…
• 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…
• 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…
• 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…
• 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…
• 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…
• 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…
• 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…
• Ontogeny re-capitulates phylogeny.
• Civilization and the life of nations are governed by the same laws as prevail throughout nature and organic life.
• Man is not above nature, but in nature.
• By ecology we understand the total science of the connections of the organism to the surrounding external world.
• 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…
• 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…
• The whole of organic nature on our planet exists only by a relentless war of all against all. ... The raging war of interests in…
• 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…
• Mental differences between the lowest men and the animals are less than those between the lowest and the highest man.
• The real cause of personal existence is not the favor of the Almighty, but the sexual love of one's earthly parents.

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