How does Bronte present Helen as stoic ?

Question 1

Helen Chapter 6 (ominous):

Answer 1

“The ominous tool she presented to Miss Scatcherd with a respectful curtesy”

Question 2

Helen Chapter 6 (Silence):

Answer 2

“Burns made no answer. I wondered at her silence”

Question 3

Helen Chapter 9 (dead):

Answer 3

“I am happy, Jane; and when you hear that I am dead, you must be sure there is nothing to grieve about”