Everything in nature is the result of fixed laws.
Charles DarwinRead
So in regard to mental qualities, their transmission is manifest in our dogs, horses and other domestic animals. Besides special tastes and habits, general intelligence, courage, bad and good tempers. etc., are certainly transmitted.
Interpretation
Darwin suggests that mental traits and characteristics can be inherited in domestic animals, similar to physical traits.
In this quote, Charles Darwin highlights the concept of hereditary transmission of mental qualities in domestic animals such as dogs and horses. He emphasizes that not only specific tastes and habits but also broader traits like intelligence, courage, and temperament can be passed down through generations, illustrating the complexity of genetic inheritance beyond mere physical attributes.
In practice
In a discussion about animal breeding, one might reference this quote to emphasize the importance of selecting for mental characteristics.
Everything in nature is the result of fixed laws.
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.
I am quite conscious that my speculations run beyond the bounds of true science....It is a mere rag of an hypothesis with as many flaw[s] & holes as sound parts.
We cannot fathom the marvelous complexity of an organic being; but on the hypothesis here advanced this complexity is much increased. Each living creature must be looked at as a microcosm--a little universe, formed of a host of self-propagating organisms, inconceivably minute and as numerous as the stars in heaven.
I have called this principle, by which each slight variation, if useful, is preserved, by the term of Natural Selection.
we are always slow in admitting any great change of which we do not see the intermediate steps
We're at a point in history were we have to become a part of the neighborhood of inhabited planets, like a neighborhood of a community, which we have not even acknowledged that that community exists up until this point.
The economists will have to revise their theories of value.
We live in a dancing matrix of viruses; they dart, rather like bees, from organism to organism, from plant to insect to mammal to me and back again, and into the sea, tugging along pieces of this genome, strings of genes from that, transplanting grafts of DNA, passing around heredity as though at a great party.
The history of acceptance of new theories frequently shows the following steps: At first the new idea is treated as pure nonsense, not worth looking at. Then comes a time when a multitude of contradictory objections are raised, such as: the new theory is too fancy, or merely a new terminology; it is not fruitful, or simply wrong. Finally a state is reached when everyone seems to claim that he had always followed this theory. This usually marks the last state before general acceptance.
If the experience of science teaches anything, it's that the world is very strange and surprising. The many revolutions in science have certainly shown that.
[Decoding the human genome sequence] is the most significant undertaking that we have mounted so far in an organized way in all of science. I believe that reading our blueprints, cataloguing our own instruction book, will be judged by history as more significant than even splitting the atom or going to the moon.
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