Of course, a positive growth rate might be taken as evidence that a population is below its optimum.
Garrett HardinBut as population became denser, the natural chemical and biological recycling processes became overloaded, calling for a redefinition of property rights.
Garrett HardinUsing the commons as a cesspool does not harm the general public under frontier conditions, because there is no public, the same behavior in a metropolis is unbearable.
Garrett Hardin