Final answer:
The subject of this question is human emotions in literature or poetry and how characters experience and deal with them.
Step-by-step explanation:
The subject of this question is Human Emotions in the context of literature or poetry.
These lines from various literary works describe a range of emotions such as anger, jealousy, cruelty, fear, pride, and love. They portray characters experiencing and grappling with these emotions.
For example, the quotation 'It was this softer, gentler man who had awakened to new thoughts in the quiet valley' demonstrates a character's transformation and the emergence of tenderness amidst jealousy.