Conscience is not negotiable
The protagonist in Jane Eyre, by Charotte Bronte, is more than a character. She is a living philosophical argument. For instance, although Jane has nowhere to go she refuses to become Edward Rochester's mistress even though she loves him. In another situation she refuses to marry St. John Rivers even though it would result in her having a "respectable" vocation and a life of value. Either of these offers would have provided Jane with what can be defined as some version of "happiness." However, each of these proposals would have require Jane to violate her moral integrity. Refusing to succumb to these tempting offers is Jane's philosophical argument that comfort is not worth a betrayal of one's self- worth/value; because conscience is not negotiable.