"Scepticism, that dry caries of the intelligence"

In this quote, Victor Hugo associates scepticism with a particular disorder - "dry caries of the intelligence." By using the term "caries," which describes dental caries, Hugo suggests that scepticism can be corrosive to the mind. He indicates that simply as caries gradually eat away at the teeth, scepticism can deteriorate the intellect, leaving it weakened and vulnerable. The term "dry" even more stresses the unfavorable undertones, hinting at a lifeless, desolate state caused by excessive doubt or questioning. Hugo's option of words paints a vivid image of the destructive impact of scepticism on one's intellectual capability and highlights the value of maintaining a healthy balance between doubt and belief.