“I believe that the emphasis on curbing population growth diverts attention from the more vital issue of pursuing policies that allow the population to take care of itself.”

“Either a species learns to control its own population, or something like disease, famine, war, will take care of the issue.”

“UN studies conducted in more than forty developing countries show that the birth rate falls as women gain equality... I believe income-earning opportunities that empower poor women ... will have more impact on curbing population growth that the current system of "encouraging" family planning practices through intimidation tactics.. Family planning should be left to the family.”

“Human population growth is probably the single most serious long-term threat to survival. We're in for a major disaster if it isn't curbed... We have no option. If it isn't controlled voluntarily, it will be controlled involuntarily by an increase in disease, starvation and war.”

“Wolves directly affect the entire ecosystem, not just moose populations, their main prey, because less moose equals more tree growth”

“...the chief cause for the impending collapse of the world - the cause sufficient in and by itself - is the enormous growth of the human population: the human flood. The worst enemy of life is too much life: the excess of human life.”