A Quote by Rachel Carson

Along with the possibility of extinction of mankind by nuclear war, the central problem of our age has therefore become the contamination of man's total environment with such substances of incredible potential for harm-substances that accumulate in the tissues of plants and animals and even penetrate the germ cells to shatter or alter the very material of heredity upon which the shape of the future depends.
Heredity is to-day the central problem of biology. This problem may be approached from many sides - that of the breeder, the experimenter, the statistician, the physiologist, the embryologist, the cytologist - but the mechanism of heredity can be studied best by the investigation of the germ cells and their development.
Life, on this Earth may be likened to a great Kaleidoscope before which the scenes and facts and material substances are ever shifting and changing and all any man can do is to take these facts and substances and re-arrange them in new combinations.
One animal or plant species may become extinct every hour. All species are doomed to extinction, but man through worldwide development/killing animals for food/profit/using toxic chemicals such as pesticides/industrial wastes, will accelerate the extinction of plants/animals and the result will be a more hostile environment for man.
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.
The most alarming of all man's assaults upon the environment is the contamination of air, earth, rivers, and sea with dangerous and even lethal materials. This pollution is for the most part irrecoverable; the chain of evil it initiates not only in the world that must support life but in living tissues is for the most part irreversible. In this now universal contamination of the environment, chemicals are the sinister and little-recognized partners of radiation in changing the very nature of the world-the very nature of its life.
The study of how substances alter gene expression is part of the field of epigenetics. Some chemical exposures appear to turn on and turn off genes in ways that disregulate cell growth and predispose for cancer. From this perspective, our genes are less the command-and-control masters of our cells and more like the keys of piano, with the environment as the hands of the pianist.
Through all of history mankind has ingested psychedelic substances. Those substances exist to put you in touch with spirits beyond yourself, with the creator, with the creative impulse of the planet.
Around the world, we see the results of exploitation which destroys much without taking future generations into account. Protecting the world's forests; stemming desertification and erosion; avoiding the spread of toxic substances harmful to man, animals and plants; protecting the atmosphere; all these can be accomplished only through active and wise cooperation, without borders or political power plays.
I shall borrow two words used for a slightly different purpose by the great demographer Alfred Lotka to distinguish between the two systems of heredity enjoyed by man: endosomatic or internal heredity for the ordinary or genetical heredity we have in common with animals; and exosomatic or external heredity for the non-genetic heredity that is peculiarly our own - the heredity that is mediated through tradition, by which I mean the transfer of information through non-genetic channels from one generation to the next.
As long as the government can arbitrarily decide which substances are legal and which are illegal, then those who remain behind bars for illegal substances are political prisoners
There are just so many substances that are considered banned substances because in some way it could help your performance on the court. As athletes, we should be responsible for what we put in our bodies.
Emotions are the natural substances of the soul ... and when we think we can't handle the emotions, we lose the natural substances of the soul and begin looking for substances to replace the flow.
The phytochemicals, antioxidants, and fiber- all of the healthful components of plant foods- originate in plants, not animals. If they are present, it is because the animal ate plants. And why should we go through an animal to get the benefits of the plants themselves? To consume unnecessary, unseemly, and unhealthy substances, such as saturated fat, animal protein, lactose, and dietary cholesterol, is to negate the benefits of the fiber, phytonutrients, vitamins, minerals, and antioxidants that are prevalent and inherent in plants.
Either there are no corporeal substances, and bodies are merely phenomena which are true or consistent with each other, such as a rainbow or a perfectly coherent dream, or there is in all corporeal substances something analogous to the soul.
In the same way that plants will not grow on soil that lacks some substance indispensable to their growth, so microbes, these microscopic plants which cause infectious disease, are unable to grow in an organism which does not give them all the substances they need.
Undeveloped though the science [of chemistry] is, it already has great power to bring benefits. Those accruing to physical welfare are readily recognized, as in providing cures, improving the materials needed for everyday living, moving to ameliorate the harm which mankind by its sheer numbers does to the environment, to say nothing of that which even today attends industrial development. And as we continue to improve our understanding of the basic science on which applications increasingly depend, material benefits of this and other kinds are secured for the future.
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