Cecily will never do anything foolish.
It's only the rose-coloured spectacles that cause stumbling.

And I mean by 'stumbling' all the silliness to which girls are subject.

Ah! if I could live _my_ girlhood over again, and with some sensible woman to guide me! If I could have been put on my guard against idiotic illusions, as Cecily is!" "We mustn't expect too much of education," Eleanor ventured to remark.
"There is no way of putting experience into a young girl's head.

It would say little for her qualities if a girl could not make a generous mistake." "Such mistakes are not worthy of being called generous, as a rule.

They are too imbecile.