We will not [says Socrates] then allow our charges, whom we expect to prove good men, being men, to play the parts of women and imitate a woman young or old wrangling with her husband, defying heaven, loudly boasting, fortunate in her own conceit, or involved in misfortune and possessed by grief and lamentation – still less a woman that is sick, in love, or in labor . . . Nor may they imitate slaves, female and male, doing the offices of slaves . . . Nor yet, as it seems, bad men who are cowards and who do the opposite of the things we just now spoke of [things done by men who are “brave, sober, pious, free”], reviling and lampooning one another, speaking foul words in their cups or when sober and in other ways sinning against themselves and others in word and deed after the fashion of such men.
This structure:"Less a woman" is new for me and I don't know what it means and meaning of "Nor" is unclear.
most of the time as I see "nor" comes with "neither".
Could you please make this sentence more clear to me?
This passage is from a book named:"On literature".