For their never-ending endeavours to obtain or retain wealth, countries desperately need companies, because they—unlike most human beings—have the means of production, and human beings, because they—unlike all companies—have the means of reproduction.

The human population would probably be way less than a thousand, if ejaculation were not usually accompanied by an orgasm.

We urgently need to either start increasing the size of our planet, or stop increasing the size of our population.

The last time everyone loved or at least liked everyone was when the world had a population of about 4.

Making love instead of war is likely to lead to an even bigger population, which is likely to lead to wars.

Because of human pollution and overpopulation, the birth of a human being, like the death of a tree, is, to planet earth, a tragedy.

We would have already reached the maximum number of people our planet can support, if men and boys were the ones who are generally seen as sex objects.

Overpopulation is by far the worst kind of pollution.