Fictional Jane who said "I need not sell my soul to buy bliss" (4)
I believe the answer is:
eyre
(Other definitions for eyre that I've seen before include "heroine, so-called" , "Bronte heroine ` `Jane ....' '" , "See 1" , "Charlotte Bronte wrote 'Jane . . . .'" , "Charlotte Bronte novel 'Jane ...'" .)