"All organic beings are exposed to severe competition"
"As more individuals are produced than can possibly survive, there must in every case be a struggle for existence."
"Each organic being,,, has to struggle for life and to suffer great destruction.... The vigorous, the healthy, and the happy survive and multiply"
SOURCE: On the Origin of Species
The above quotes are from an article by Niall Ferguson on economic history entitled "Dead Men Walking Why 2009's truly top thinkers are yesterday's news. Foreign Policy Special 2009 Issue
