Socialism also brings us up against the hard rock of eugenic fact which, if we neglect it, will dash our most beautiful social construction to fragments.

Birth-control is effecting, and promising to effect, many functions in our social life.

The sun, the moon and the stars would have disappeared long ago... had they happened to be within the reach of predatory human hands.

Still, whether we like it or not, the task of speeding up the decrease of the human population becomes increasingly urgent.

The parents have not only to train their children: it is of at least equal importance that they should train themselves.

To make a mountain out of a mole-hill.

The modesty of women, which, in its most primitive form among animals, is based on sexual periodicity, is, with that periodicity, an essential condition of courtship.