The object of this essay is to explain as clearly as I am able, the grounds of an opinion which I have held from the very earliest period when I had formed any opinions at all on social or political matters, and which, instead of being weakened or modified, has been constantly growing stronger by the progress of reflection and the experience of life: That the principle which regulates the existing social relations between the two sexes- the legal subordination of one sex to the other- is wrong in itself, and now one of the chief hindrances to human improvement ; and that is ought to be replaced by a principle of perfect equality, admitting no power or privilege on the one side, nor disability on the other.

A prodigiously brilliant thinker who sharply challenged the beliefs of his age, the political and social radical John Stuart Mill was the most influential English-speaking philosopher of the nineteenth century. Regarded as one of the sacred texts of liberalism, his great work On Liberty argues lucidly that any democracy risks becoming a 'tyranny of opinion' in which minority views are suppressed if they do not conform with those of the majority. Written in the same period as On Liberty, shortly after the death of Mill's beloved wife and fellow-thinker Harriet, The Subjection of Women stresses the importance of equality for the sexes. Together, the works provide a fascinating testimony to the hopes and anxieties of mid-Victorian England, and offer a compelling consideration of what it truly means to be free.