In our superior human civilisation, in which quantity ever tends to give place to quality, the higher value of the individual involves an effort to avoid sacrifice which sometimes proves worse than abortive.

An avian philosopher would be unlikely to feel called upon to denounce nests as the dark places of the earth, and in laying down our human moral laws we have always to be aware of forgetting the fundamental biological relationship of parent and child to which all such moral laws must conform.

To some would-be parents that necessity may seem hard.

In such a case it is well for them to remember that there is no need to become parents and that we live in an age when it is not difficult to avoid becoming a parent.

The world is not dying for lack of parents.