Which line from a vindication of the rights of woman conveys the essay’s main theme?

I believe that the line which could be considered as main theme is: “They ought to cherish a nobler ambition and by their abilities and virtues exact respect”.

Wollstonecraft's purpose for writing the essay “A Vindication of the Rights of Women” was to criticize the society’s view of women. She considered the flaws they saw in women as artificial and pleaded for a better education of women. Wollstonecraft’s main statement is that women should be respected, not only admired for their beauty, which is shown in sentence: “They ought to cherish a nobler ambition and by their abilities and virtues exact respect”.

a complex sentence consists of an independent clause and one or more dependent clauses.  

to write complex sentences, we must use subordinating conjunctions.  

all the complex sentences begin with a subordinating conjunction and when it occurs, a comma must be place at the end of the dependent clause. on the contrary, if the sentence begins with an independent clause, then no comma is used.

after  

although  

as  

because  

before  

if  

since  

when  

for example,  

after she won the competition, she became very popular.  

although my father was hurt, he continued fighting for his rights.  

as all of you got a ten, you will be able to leave early today.  

before he went to the war, he asked his parents to bless him.  

if it is cold, i won’t go out.  

since you didn’t bring the homework, you will get low grades.  

when it is hot in the town, everyone goes to the beach.