Charlotte Brontë,
The Professor — Chapter XVI.
“ A wasteful expense of energy and labour was frequently the consequence; Frances toiled for and with her pupils like a drudge, but it was long ere her conscientious exertions were rewarded by anything like docility on their part, because they saw that they had power over her, inasmuch as by resisting her painful attempts to convince, persuade, control—by forcing her to the employment of coercive measures—they could inflict upon her exquisite suffering. ”
