About 2,200 years ago, Han Fei-Tzu wrote the following truth. Too bad his country did not listen:
In ancient times, people were few but wealthy and without strife. People at present think that five sons are not too many, and each son has five sons also and before the death of the grandfather there are already 25 descendants. Therefore people are more and wealth is less; they work hard and receive little. The life of a nation depends upon having enough food, not upon the number of people.
(Quoted page 18 of Population Evolution and Birth Control, 2nd edition, assembled by Garrett Hardin. W. H. Freeman, 1969.)