Science is a way to not fool ourselves.
As agonizing a disease as cancer is, I do not think it can be said that our civilization is threatened by it. ... But a very plausible case can be made that our civilization is fundamentally threatened by the lack of adequate fertility control. Exponential increases of population will dominate any arithmetic increases, even those brought about by heroic technological initiatives, in the availability of food and resources, as Malthus long ago realized.
Interpretation
What this quote means
While cancer is a horrible disease, the true threat to civilization lies in uncontrolled population growth and inadequate fertility control.
In this quote, Carl Sagan emphasizes that although cancer poses significant challenges to individuals and families, it is not the primary threat to civilization as a whole. Instead, he warns that unchecked population growth will outpace improvements in food and resource availability, echoing Malthus's principles. The focus on inadequate fertility control suggests a need for a more sustainable approach to managing population numbers to avert potential crises in resource distribution and food security.
Themes
In practice
Example use cases
In a presentation about global health, one could use this quote to highlight the importance of population control.
More from Carl Sagan
All quotes βIn more than one respect, the exploring of the Solar System and homesteading other worlds constitutes the beginning, much more than the end, of history.
How smart does a chimpanzee have to be before killing him constitutes murder?
The hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment.
There is a reward structure in science that is very interesting: Our highest honors go to those who disprove the findings of the most revered among us. So Einstein is revered not just because he made so many fundamental contributions to science, but because he found an imperfection in the fundamental contribution of Isaac Newton.
The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
Similar quotes
Men became scientific because they expected Law in Nature, and they expected Law in Nature because they believed in a Law Giver.
(On the energy radiated by the Sun) It's four hundred million million million million watts. That is a million times the power consumption of the United States every year, radiated in one second, and we worked that out by using some water, a thermometer, a tin, and an umbrella. And that's why I love physics.
What sense would it make or what would it benfit a physician if he discovered the origin of the diseases but could not cure or alleviate them?
If you take 100 breast-cancer samples, 100 types of cancer have 100 different hallmarks of mutated genes. You could be nihilistic and say, 'Oh, God, we'll never be able to tackle this!' But there are deep, systematic, organizational principles at work in all that diversity.
According to inflation, the more than 100 billion galaxies, sparkling throughout space like heavenly diamonds, are nothing but quantum mechanics writ large across the sky. To me, this realization is one of the greatest wonders of the modern scientific age.
The incredible diversity oflife on this planet, most of which is microbial, can only beunderstood in an evolutionary framework