In "Middlemarch," George Eliot describes two contrasting characters through their physical presence and the impressions they create. One character exhibits a captivating charisma; when he moves, his hair seems to emit light, leading others to perceive him as a figure of brilliance and potential genius. This striking imagery emphasizes how physical traits can influence people's perceptions of a person's intellect and worth.

In sharp contrast, Mr. Casaubon is portrayed as devoid of such brilliance. His rayless demeanor suggests a lack of vitality and inspiration, setting him apart from others who radiate charisma. This juxtaposition highlights themes of perception, individuality, and the societal judgments that arise from outward appearances, prompting readers to consider how appearances can shape our understanding of character and intellect.