We have been God-like in our planned breeding of our domesticated plants and animals, but we have been rabbit-like in our unplanned breeding of ourselves.
A program of sterilizing women after their second or third child, despite the relatively greater difficulty of the operation than vasectomy, might be easier to implement than trying to sterilize men.
If the world is to save any part of its resources for the future, it must reduce not only consumption but the number of consumers.
'Smart growth' destroys the environment. 'Dumb growth' destroys the environment. The only difference is that 'smart growth' does it with good taste. It's like booking passage on the Titanic. Whether you go first-class or steerage, the result is the same.
Childbearing should be a punishable crime against society, unless the parents hold a government license. All potential parents should be required to use contraceptive chemicals, the government issuing antidotes to citizens chosen for childbearing.
Once it was necessary that the people should multiply and be fruitful if the race was to survive. But now to preserve the race it is necessary that people hold back the power of propagation.
In the US, there is basically one party - the business party. It has two factions, called Democrats and Republicans, which are somewhat different but carry out variations on the same policies. By and large, I am opposed to those policies. As is most of the population.
In the event that I am reincarnated, I would like to return as a deadly virus, in order to contribute something to solve overpopulation.
Birth control itself, often denounced as a violation of natural law, is nothing more or less than the facilitation of the process of weeding out the unfit, of preventing the birth of defectives or of those who will become defectives.
Our failure to segregate morons who are increasing and multiplying . . . demonstrates our foolhardy and extravagant sentimentalism,
The destructive one-fourth must be eliminated from the social body.
Governments don't want a population capable of critical thinking, they want obedient workers, people just smart enough to run the machines and just dumb enough to passively accept their situation.
The Internet is an élite organization; most of the population of the world has never even made a phone call.
All our environmental problems become easier to solve with fewer people and harder - and ultimately impossible to solve - with ever more people.
A finite world can support only a finite population; therefore, population growth must eventually equal zero.
None of us know all the potentialities that slumber in the spirit of the population, or all the ways in which that population can surprise us when there is the right interplay of events.
Almost half of the population of the world lives in rural regions and mostly in a state of poverty. Such inequalities in human development have been one of the primary reasons for unrest and, in some parts of the world, even violence.
The superior power of population cannot be checked without producing misery or vice.
Close to a billion people - one-eighth of the world's population - still live in hunger. Each year 2 million children die through malnutrition. This is happening at a time when doctors in Britain are warning of the spread of obesity. We are eating too much while others starve.
When motherhood becomes the fruit of a deep yearning, not the result of ignorance or accident, its children will become the foundation of a new race.
Rapid population growth and technological innovation, combined with our lack of understanding about how the natural systems of which we are a part work, have created a mess.
The broad masses of a population are more amenable to the appeal of rhetoric than to any other force.
We need to recognise that slowing population growth is one of the most cost-effective and reliable ways of easing pressure on our environment and securing a sustainable future for us all
Of course I know our economic growth can't match our population growth so of course I know we'll all get poorer until we get that number down - don't tell me, tell the other idiots!
When every province of the world so teems with inhabitants that they can neither subsist where they are nor remove themselves elsewhere... the world will purge itself in one or another of these three ways (floods, plague and famine)
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