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 Copy Share Image
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,… — Ernst Haeckel Copy Share Image
We are compelled by reflection to recognize that God is not to be placed against the material world [as in Christianity], but must be… — Ernst Haeckel Copy Share Image
Civilization and the life of nations are governed by the same laws as prevail throughout nature and organic life. — Ernst Haeckel Copy Share Image
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… — Ernst Haeckel Copy Share Image
The succession of individuals, connected by reproduction and belonging to a species, makes it possible for the specific form itself to last for ages.… — Ernst Haeckel Copy Share Image
There is no doubt that the course and character of the feared 'European war'... will become the first world war in the full sense… — Ernst Haeckel Copy Share Image
Man is not distinguished from [the animals] by a special kind of soul, or by any peculiar and exclusive psychic function, but only by… — Ernst Haeckel Copy Share Image
Where faith commences, science ends. Both these arts of the human mind must be strictly kept apart from each other. Faith has its origin… — Ernst Haeckel Copy Share Image
The nucleus has to take care of the inheritance of the heritable characters, while the surrounding cytoplasm is concerned with accommodation or adaptation to… — Ernst Haeckel Copy Share Image
The whole of organic nature on our planet exists only by a relentless war of all against all. ... The raging war of interests… — Ernst Haeckel Copy Share Image
By ecology we understand the total science of the connections of the organism to the surrounding external world. — Ernst Haeckel Copy Share Image
Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the… — Ernst Haeckel Copy Share Image
![“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…” quote by Ernst Haeckel](https://sms4smile.com/quotes/img-quotes/2f0/ernst-haeckel-20972_christianity_we-are-compelled-by-reflection-to-recogn_133705.jpg)
![“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.” quote by Ernst Haeckel](https://sms4smile.com/quotes/img-quotes/83b/ernst-haeckel-20972_activity_man-is-not-distinguished-from-the-animal_721744.jpg)
