Reproduction is so primitive and fundamental a function of vital organisms that the mechanism by which it is assured is highly complex and not yet clearly understood. It is not necessarily connected with sex, nor is sex necessarily connected with reproduction.
Havelock EllisThe 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.
Havelock EllisThose persons who are burning to display heroism may rest assured that the course of social evolution will offer them every opportunity.
Havelock Ellis