Mark Nathan Cohen - The Food Crisis in History : overpopulation and the origins of agriculture.

Perhaps it will aid us in our economic transition to realise that human populations once faced the notion of eating oysters and later the prospect of eating wheat with much the same enthusiasm that we now face the prospect of eating seaweed, soy protein, and artificial organic molecules.

The last sentence of the american anthropologist Mark Nathan Cohen’s 1977 book The Food Crisis in History : overpopulation and the origins of agriculture.

http://en.wikipedia.org/wiki/Mark_Nathan_Cohen