Population Study Quotes

Comparison of statements made at different periods frequently enable us to give maximal and minimal dates to the appearance of a cultural element or to assign the time limits to a movement of population.

Sampling, statisticians have told us, is a much more effective way of getting a good census.

Demographers affirm that choosing to have a second child is already a potential choice in favour of a third.

My proposal now is to test a vaccine first on people who have been infected, and if you show some efficacy at this level, you might be able to go further to study uninfected people in a population with a high rate of infection.

I struck upon this kind of crazy idea that I was going to go to New York and stop 10,000 people on the streets and take their portrait and create kind of a photographic census of the city.

So many able historians have worked over seventeenth-century New England that one would think there was little left to be learned from the people who lived there - fewer than 100,000 at the end of the century. Seldom, apart perhaps from the Greeks and Romans, have so few been studied by so many.

I understand demographics.

Reality, in its quantitative aspect, must be considered as a system of populations... The general study of the equilibria and dynamics of populations seems to have no name; but as it has probably reached its highest development in the biological study known as 'ecology,' this name may well be given to it.

So far, therefore, as we can draw safe conclusions from a single specimen, there has been no marked change of race in the human population of Switzerland during the periods above considered.