A Quote by Ernst Haeckel

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.

Ernst Haeckel

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Abstract Branches Concrete Coordinated Developmental Hand History Individual Morphology Other Therefore Two

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Ernst Haeckel
German - Scientist
February 16, 1834 - August 8, 1919

Ontogeny re-capitulates phylogeny.

Ernst Haeckel

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).

Ernst Haeckel

It is now firmly established that ontogeny does not repeat phylogeny

George Gaylord Simpson

Child psychology and animal psychology are of relatively slight importance, as compared with the sciences which deal with the corresponding physiological problems of ontogeny and phylogeny.

Wilhelm Wundt

If ontogeny recapitulates phylogeny, then children are somewhat closer to our roots as primates in the arboreal forest. Humans appear to be the only primates that I know of that are afraid of heights. All other primates, when they're scared, they run up a tree, where they feel safe.

Richard Preston

Human culture, in evolutionary terms, moves from episodic, to mimetic, to mythic, to theoretic - that made all kinds of sense. To some extent, ontogeny repeats phylogeny, because children go through something like the same thing.

Robert Neelly Bellah

A living organism must be studied from two distinct aspects. One of these is the causal-analytic aspect which is so fruitfully applicable to ontogeny. The other is the historical descriptive aspect which is unravelling lines of phylogeny with ever-increasing precision. Each of these aspects may make suggestions concerning the possible significance of events seen under the other, but does not explain or translate them into simpler terms.

Gavin de Beer

On the other hand, ethnic psychology must always come to the assistance of individual psychology, when the developmental forms of the complex mental processes are in question.

Wilhelm Wundt

Freedom is necessary for two reasons. It's necessary for the individual, because the individual, no matter how good the society is, every individual has hopes, fears, ambitions, creative urges, that transcend the purposes of his society. Therefore we have a long history of freedom, where people try to extricate themselves from tyranny for the sake of art, for the sake of science, for the sake of religion, for the sake of the conscience of the individual - this freedom is necessary for the individual.

Reinhold Niebuhr

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.

Ernst Haeckel

The development of an organism ... may be considered as the execution of a 'developmental program' present in the fertilized egg. ... A central task of developmental biology is to discover the underlying algorithm from the course of development.

Aristid Lindenmayer

The principal result of my investigation is that a uniform developmental principle controls the individual elementary units of all organisms, analogous to the finding that crystals are formed by the same laws in spite of the diversity of their forms.

Theodor Schwann

In the course of the history of the earth innumerable events have occurred one after another, causing changes of states, all with certain lasting consequences. This is the basis of our developmental law, which, in a nutshell, claims that the diversity of phenomena is a necessary consequence of the accumulation of the results of all individual occurrences happening one after another... The current state of the earth, thus, constitutes the as yet most diverse final result, which of course represents not a real but only a momentary end-point.

Bernhard von Cotta

Our early lessons in love and our developmental history shape the expectations we bring into marriage.

Judith Viorst

Developmental readings are actually the best part of being an actor for me. I once spent a month doing so many developmental readings at the Roundabout that we all joked that I was an 'artist in residence' there. But to me, it's such a special time to be involved with a new play.

Sarah Steele

Society is just a structure with no soul. The soul is of the individual. One individual outweighs all societies. And, one individual's revolution outweighs all revolutions in the whole of history, because one man can become the womb for God to be reborn.

Rajneesh

A Quote by Ernst Haeckel

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