“truth, in morals, has ever appeared to me the essence of the sublime; and, in taste, simplicity the only criterion of the beautiful.”
Wollstonecraft makes moral truth and aesthetic simplicity standards of seriousness, rejecting ornate politeness when it conceals what a writer actually believes.
Source details
A Vindication of the Rights of Men, opening letter to Edmund Burke, second edition (1790); this sentence follows Wollstonecraft’s refusal to disguise her sentiments behind courtly politeness.