“What women by nature cannot do, it is quite superfluous to forbid them from doing.”
The argument exposes a contradiction in claims about natural incapacity: if an activity were truly impossible by nature, legal prohibition would be unnecessary.
Source details
The Subjection of Women (1869), Chapter I, printed page 48, Project Gutenberg #27083. Mill argues that if an activity were truly contrary to women’s nature, legal or social prohibition would be superfluous; the sentence belongs to his case for free development and open competition.