A Quote by Herbert Spencer Jennings
A cell of a higher organism contains a thousand different substances, arranged in a complex system. This great organized system was not discovered by chemical or physical methods; they are inadequate to its refinement and delicacy and complexity.
Quote Topics
Quote Author
Related Quotes
The chemical compounds are comparable to a system of planets in that the atoms are held together by chemical affinity. They may be more or less numerous, simple or complex in composition, and in the constitution of the materials, they play the same role as Mars and Venus do in our planetary system, or the compound members such as our earth with its moon, or Jupiter with its satellites... If in such a system a particle is replaced by one of different character, the equilibrium can persist, and then the new compound will exhibit properties similar to those shown by the original substance.
Too great refinement is false delicacy, and true delicacy is solid refinement.
A single kind of red cell is supposed to have an enormous number of different substances on it, and in the same way there are substances in the serum to react with many different animal cells. In addition, the substances which match each kind of cell are different in each kind of serum. The number of hypothetical different substances postulated makes this conception so uneconomical that the question must be asked whether it is the only one possible. ... We ourselves hold that another, simpler, explanation is possible.
My main thesis will be that in the study of the intermediate processes of metabolism we have to deal not with complex substances which elude ordinary chemical methods, but with the simple substances undergoing comprehensible reactions... I intend also to emphasise the fact that it is not alone with the separation and identification of products from the animal that our present studies deal; but with their reactions in the body; with the dynamic side of biochemical phenomena.
It is clear to all that the animal organism is a highly complex system consisting of an almost infinite series of parts connected both with one another and, as a total complex, with the surrounding world, with which it is in a state of equilibrium.
As biologists, we contemplate with admiration and awe the wondrous array of sophisticated cell interactions and recognitions evolved in the T cell immune system, which must be a model for other similarly complex biological systems of highly differentiated organisms.
When building a complex system, having crackerjack programmers (who can make any design work, even a bad one) can be a liability. The result, after lots of effort, is a working system that cannot be easily maintained or upgraded. Good -but not great- programmers would fail early, causing a realization that the system must be redesigned, and then reimplemented. The extra cost is paid once, early in the system's cycle (when it is cheap), instead of repeatedly paid late in the system's cycle (when it is more expensive).
My feeling is that a human being or any complex organism has a system of cognitive structures that develop much in the way the physical organs of the body develop. That is, in their fundamental character they are innate; their basic form is determined by the genetic structure of the organism. Of course, they grow under particular environmental conditions, assuming a specific form that admits of some variation. Much of what is distinctive among human beings is a specific manner in which a variety of shared cognitive structures develop.
We may, I believe, anticipate that the chemist of the future who is interested in the structure of proteins, nucleic acids, polysaccharides, and other complex substances with high molecular weight will come to rely upon a new structural chemistry, involving precise geometrical relationships among the atoms in the molecules and the rigorous application of the new structural principles, and that great progress will be made, through this technique, in the attack, by chemical methods, on the problems of biology and medicine.
A corporation is organized as a system - it has this department, that department, that department... they don't have any meaning separately; they only can function together. And also the body is a system. Society is a system in some sense. And so on.
Cancer is not just a dividing cell. It's a complex disease: It invades, it metastasizes, it evades the immune system.
If we want to postulate a deity capable of engineering all the organized complexity in the world, either instantaneously or by guiding evolution, that deity must have been vastly complex in the first place. The creationist, whether a naive Bible-thumper or an educated bishop, simply postulates an already existing being of prodigious intelligence and complexity. If we are going to allow ourselves the luxury of postulating organized complexity without offering an explanation, we might as well make a job of it and simply postulate the existence of life as we know it!
I became aware of the very complex internal organization in a cell from the basic science classes, and it made me think about how all that could work. It seemed like a great mystery, especially how organelles in the cell can be arranged in three dimensions, and how thousands of proteins could find their way to the right location in the cells.
The cell, this elementary keystone of living nature, is far from being a peculiar chemical giant molecule or even a living protein and as such is not likely to fall prey to the field of an advanced chemistry. The cell is itself an organism, constituted of many small units of life.
An immune system of enormous complexity is present in all vertebrate animals. When we place a population of lymphocytes from such an animal in appropriate tissue culture fluid, and when we add an antigen, the lymphocytes will produce specific antibody molecules, in the absense of any nerve cells. I find it astonishing that the immune system embodies a degree of complexity which suggests some more or less superficial though striking analogies with human language, and that this cognitive system has evolved and functions without assistance of the brain.
You could not have evolved a complex system like a city or an organism - with an enormous number of components - without the emergence of laws that constrain their behavior in order for them to be resilient.
Related Authors
Barack Obama Quotes
American
President
Benjamin Franklin Quotes
American
Politician
Cassandra Clare Quotes
American
Author
Deepak Chopra Quotes
American
Speaker
Donald Trump Quotes
American
President
Frederick Lenz Quotes
American
Author
George W. Bush Quotes
American
President
Henry David Thoreau Quotes
American
Author
Hillary Clinton Quotes
American
Politician
Mark Twain Quotes
American
Writer
Noam Chomsky Quotes
American
Activist
Ralph Waldo Emerson Quotes
American
Philosopher
Rick Riordan Quotes
American
Author
Rush Limbaugh Quotes
American
Entertainer
Sherrilyn Kenyon Quotes
American
Writer
Thomas Jefferson Quotes
American
President