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Lamarck Quotes & Sayings

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Top Lamarck Quotes

Lamarck Quotes By Jean-Baptiste Lamarck

The great age of the earth will appear greater to man when he understands the origin of living organisms and the reasons for the gradual development and improvement of their organization. This antiquity will appear even greater when he realizes the length of time and the particular conditions which were necessary to bring all the living species into existence. This is particularly true since man is the latest result and present climax of this development, the ultimate limit of which, if it is ever reached, cannot be known. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

Now this circumscribed power, which we have scarcely examined, scarcely studied, this power to whose actions we nearly always attribute an intention and a goal, this power, finally, that always does necessarily the same things in the same circumstances and nevertheless does so many and such admirable ones, is what we call 'nature' . — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

It is not enough to discover and prove a useful truth previously unknown, but that it is necessary also to be able to propagate it and get it recognized. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

The thesis that the living creatures have always been composed different species was established in a time where no sufficient observations had been made and when science hardly existed. This thesis is denied every day by those who have made accurate observations, who have long time observed nature and who have had the benefit from studying our musei's large and rich collections. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

It is not always the magnitude of the differences observed between species that must determine specific distinctions, but the constant preservation of those differences in reproduction. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

It is not the organs - that is, the character and form of the animal's bodily parts - that have given rise to its habits and particular structures. It is the habits and manner of life and the conditions in which its ancestors lived that have in the course of time fashioned its bodily form, its organs and qualities. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

After having produced aquatic animals of all ranks and having caused extensive variations in them by the different environments provided by the waters, nature led them little by little to the habit of living in the air, first by the water's edge and afterwards on all the dry parts of the globe. These animals have in course of time been profoundly altered by such novel conditions; which so greatly influenced their habits and organs that the regular gradation which they should have exhibited in complexity of organisation is often scarcely recognisable. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

The form follows the function. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

All known living bodies are sharply divided into two special kingdoms, based upon the essential differences which distinguish animals from plants, and in spite of what has been said, I am convinced that these two kingdoms do not really merge into one another at any point. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

On our planet, all objects are subject to continual and inevitable changes which arise from the essential order of things. These changes take place at a variable rate according to the nature, condition, or situation of the objects involved, but are nevertheless accomplished within a certain period of time. Time is insignificant and never a difficulty for Nature. It is always at her disposal and represents an unlimited power with which she accomplishes her greatest and smallest tasks. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

One must believe that every living thing whatsoever must change insensibly in its organization and in its form ... One must therefore never expect to find among living species all those which are found in the fossil state, and yet one may not assume that any species has really been lost or rendered extinct. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

All knowledge that is not the real product of observation, or of consequences deduced from observation, is entirely groundless and illusory. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ imperceptibly weakens and deteriorates it, and progressively diminishes its functional capacity, until it finally disappears. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

First Law
In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ imperceptibly weakens and deteriorates it, and progressively diminishes its functional capacity, until it finally disappears.
Second Law
All the acquisitions or losses wrought by nature on individuals, through the influence of the environment in which their race has long been placed, and hence through the influence of the predominant use or permanent disuse of any organ; all these are preserved by reproduction to the new individuals which arise, provided that the acquired modifications are common to both sexes, or at least to the individuals which produce the young. — Jean-Baptiste Lamarck

Lamarck Quotes By Ernst W. Mayr

According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence to another. — Ernst W. Mayr

Lamarck Quotes By Richard Owen

Cuvier had preceded Lamarck in specifying the kinds and degrees of variation, which his own observations and critical judgment of the reports of others led him to admit. — Richard Owen

Lamarck Quotes By Elizabeth Kolbert

According to Lamarck, there was a force - the 'power of life' - that pushed organisms to become increasingly complex. — Elizabeth Kolbert

Lamarck Quotes By Sara Maitland

Wilberforce did not believe in either evolution or extinction.
Owen believed in extinction but not evolution.
Lamarck believed in evolution but not extinction.
Darwin believed in evolution and extinction.
All four of them believed in God. — Sara Maitland

Lamarck Quotes By Jean-Baptiste Lamarck

However, if we consider that all the characteristics which have been cited are only differences in degree of structure, may we not suppose that this special condition of organization of man has been gradually acquired at the close of a long period of time, with the aid of circumstances which have proved favorable? What a subject for reflection for those who have the courage to enter into it! — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

Life, in a body whose order and state of affairs can make it manifest, is assuredly, as I have said, a real power that gives rise to numerous phenomena. This power has, however, neither goal nor intention. It can do only what it does; it is only a set of acting causes, not a particular being. I was the first to establish this truth at a time when life was still thought to be a principle, an archeia, a being of some sort. — Jean-Baptiste Lamarck

Lamarck Quotes By Jean-Baptiste Lamarck

A sound Physics of the Earth should include all the primary considerations of the earth's atmosphere, of the characteristics and continual changes of the earth's external crust, and finally of the origin and development of living organisms. These considerations naturally divide the physics of the earth into three essential parts, the first being a theory of the atmosphere, or Meteorology, the second, a theory of the earth's external crust, or Hydrogeology, and the third, a theory of living organisms, or Biology. — Jean-Baptiste Lamarck

Lamarck Quotes By Charles Darwin

At last gleams of light have come, and I am almost convinced (quite contrary to opinion I started with) that species are not (it is like confessing a murder) immutable. Heaven forfend me from Lamarck nonsense of a 'tendency to progression', 'adaptations from the slow willing of animals', &c! But the conclusions I am led to are not widely different from his; though the means of change are wholly so. I think I have found out (here's presumption!) the simple way by which species become exquisitely adapted to various ends. — Charles Darwin

Lamarck Quotes By Jean-Baptiste Lamarck

What nature does in the course of long periods we do every day when we suddenly change the environment in which some species of living plant is situated. — Jean-Baptiste Lamarck