A Quote by George Wald

Four elements, Hydrogen, carbon, oxygen and nitrogen, also provide an example of the astonishing togetherness of our universe. They make up the "organic" molecules that constitute living organisms on a planet, and the nuclei of these same elements interact to generate the light of its star. Then the organisms on the planet come to depend wholly on that starlight, as they must if life is to persist. So it is that all life on the Earth runs on sunlight. [Referring to photosynthesis]

George Wald

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Also Astonishing Carbon Come Constitute Depend Earth Elements Example Four Four Elements Generate Hydrogen Interact Life Life Is Light Living Living Organisms Make Make Up Molecules Must Nitrogen Organic Organisms Our Oxygen Persist Photosynthesis Planet Provide Referring Runs Same Star Starlight Sunlight Then Togetherness Universe Up Wholly

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George Wald
American - Scientist
November 18, 1906 - April 12, 1997

Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three.

Asa Gray

Originally, the atoms of carbon from which we're made were floating in the air, part of a carbon dioxide molecule. The only way to recruit these carbon atoms for the molecules necessary to support life-the carbohydrates, amino acids, proteins, and lipids-is by means of photosynthesis. Using sunlight as a catalyst the green cells of plants combine carbon atoms taken from the air with water and elements drawn from the soil to form the simple organic compounds that stand at the base of every food chain. It is more than a figure of speech to say that plants create life out of thin air.

Michael Pollan

Evolutionary biologists often appeal to parsimony when they seek to explain why organisms "match" with respect to a given trait. For example, why do almost all the organisms that are alive today on our planet use the same genetic code? If they share a common ancestor, the code could have evolved just once and then been inherited from the most recent common ancestor that present organisms share. On the other hand, if organisms in different species share no common ancestors, the code must have evolved repeatedly.

Elliott Sober

Photosynthetic organisms in the sea yield most of the oxygen in the atmosphere, take up and store vast amounts of carbon dioxide, shape planetary chemistry, and hold the planet steady.

Sylvia Earle

If you look at the ecological circuitry of this planet, the ways in which materials like carbon or sulfur or phosphorous or nitrogen get cycled in ways that makes them available for our biology, the organisms that do the heavy lifting are bacteria.

Andrew H. Knoll

We need to go back to our relationship with nature and understand that those trees are our lungs. The earth is recycling as our body. The rivers are our circulation. This air is our breath. And the star stuff, the carbon, hydrogen, nitrogen that comes from distant galaxies is actually the molecules of your body.

Deepak Chopra

I tell my students, with a feeling of pride that I hope they will share, that the carbon, nitrogen, and oxygen that make up ninety-nine per cent of our living substance were cooked in the deep interiors of earlier generations of dying stars. Gathered up from the ends of the universe, over billions of years, eventually they came to form, in part, the substance of our sun, its planets, and ourselves. Three billion years ago, life arose upon the earth. It is the only life in the solar system.

George Wald

To our senses, the elements are four and have ever been, and will ever be for they are the elements of life, of poetry, and of perception, the four Great Ones, the Four Roots, the First Four of Fire and the Wet, Earth and the wide Air of the World. To find the other many elements, you must go to the laboratory and hunt them down. But the four we have always with us, they are our world. Or rather, they have us with them.

D. H. Lawrence

There are more living organisms in a tablespoon of highly organic soil than there are people on the planet.

Howard Warren Buffett

For the fact is that organisms are creative and make their environments in such a way as to become virtually part of it themselves. But at the same time environments (nature and other people) are active in the making of organisms. In many respects each one of these elements, organism and environment, form part of one another.

Peter Dickens

We're not just any star stuff, most of which is humdrum hydrogen and listless helium. Our bodies include fancier ingredients like carbon, oxygen, nitrogen, phosphorous, and a few other herbs and spices.

Seth Shostak

Why, for example, should a group of simple, stable compounds of carbon, hydrogen, oxygen, and nitrogen struggle for billions of years to organize themselves into a professor of chemistry? What's the motive?

Robert M. Pirsig

Why, for example, should a group of simple, stable compounds of carbon, hydrogen, oxygen and nitrogen struggle for billions of years to organise themselves into a professor of chemistry? What's the motive?

Robert M. Pirsig

If our solar system is not unusual, then there are so many planets in the universe that, for example, they outnumber the sum of all sounds and words ever uttered by every human who has ever lived. To declare that Earth must be the only planet with life in the universe would be inexcusably bigheaded of us.

Neil deGrasse Tyson

Our planet has been around only for four and a half billion years. Let's imagine a planet that has life on it such as life is on Earth and it's seven billion years old. Let's say that planet evolved intelligence. Well, that intelligence would be way more advanced than what we call intelligence here on Earth. How long has intelligence been around on Earth as we've come to define it?

Neil deGrasse Tyson

Organisms in the ocean provide over 40 percent of the oxygen we breathe, and they're the major sink for capturing all the carbon dioxide we constantly release into the atmosphere.

Craig Venter

A Quote by George Wald

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