Economists (and others) who are satisfied with nature-free equations develop a dangerous hubris about the potency of our species
Interpretation
The quote warns against overconfidence in our ability to manipulate the environment without considering natural limits.
Garrett Hardin emphasizes the peril of relying solely on abstract economic equations that ignore the constraints of nature. Such an attitude may lead to a dangerous arrogance about humanity's power to control and dominate the natural world, potentially resulting in detrimental consequences for both the environment and society.
In practice
In a lecture on environmental ethics, one might use this quote to discuss the limitations of economic models.
Moreover, the practical recommendations deduced from ecological principles threaten the vested interests of commerce; it is hardly surprising that the financial and political power created by these investments should be used sometimes to suppress environmental impact studies.
A technical solution may be defined as one that requires a change only in the techniques of the natural sciences, demanding little or nothing in the way of change in human values or ideas of morality.
Thou shalt not transgress the carrying capacity
A finite world can support only a finite population; therefore, population growth must eventually equal zero.
Indeed, our particular concept of private property, which deters us from exhausting the positive resources of the earth, favors pollution.
Society does not need more children; but it does need more loved children. Quite literally, we cannot afford unloved children - but we pay heavily for them every day. There should not be the slightest communal concern when a woman elects to destroy the life of her thousandth-of-an-ounce embryo. But all society should rise up in alarm when it hears that a baby that is not wanted is about to be born.
We have such a terrible, terrible misconception of science. We think it involves the definite, the precise, the known; it is a horrid series of gates to an unknown as vast of the universe; which means endless.
I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind.
The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true science. He who knows it not, and can no longer wonder, no longer feel amazement, is as good as dead. We all had this priceless talent when we were young. But as time goes by, many of us lose it. The true scientist never loses the faculty of amazement. It is the essence of his being.
You have to remember that not every creature that was evolving left behind its skull or its tools for our convenience tens of thousands of years later. Most bones or most tools rot or get buried and are never found again.
You have to know evolution to understand the natural world. And that cannot be a threat to people of faith. There's a serious problem if you are forced by your faith to reject the most well-supported theory in all of science.
Experiments with animals have long been handicapped by our anthropocentric attitude: We often test them in ways that work fine with humans but not so well with other species.
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