“‎Using his burgeoning intelligence, this most successful of all mammals has exploited the environment to produce food for an ever increasing population. Instead of controlling the environment for the benefit of the population, perhaps it's time we controlled the population to allow the survival of the environment.”

“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.”

“[Some diseases] are probably always present in population 'resrvoirs'... and in times of malnutrition or other adverse conditions [manifest]... as population controls.”

“Apparently, he’d killed so many family members that he must have significantly affected the Lore’s population. Doing my part for the environment.”

“it will be objected that a constantly increasing population makes resistance and conservation a hopeless battle. this is true. unless a way is found to stabilize the nation's population, the parks can not be saved. or anything else worth a damn. wilderness preservation, like a hundred other good causes, will be forgotten under the overwhelming pressure of a struggle for mere survival and sanity in a completely urbanized, completely industrialized, ever more crowded environment. for my own part i would rather take my chances in a thermonuclear war than live in such a world.”

“if we can control the environment in which rapid cognition takes place, then we can control rapid cognition”