Who said "Sentiment is the disease, logic is the cure."?

This quote is attributed to Moriarty.

Sentiment is the disease, logic is the cure. - Moriarty

"Sentiment is the disease, logic is the cure."

Moriarty Philosophy

"You see, but you do not observe. The distinction is quite clear."

"I am not a puzzle to be solved; I am the one who solves."

"The world is full of obvious things which no one by any chance ever observes."

"Crime is common. Logic is rare."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."