Who said "To be forgotten is to have never truly lived."?

This quote is attributed to Moriarty.

To be forgotten is to have never truly lived. - Moriarty

"To be forgotten is to have never truly lived."

Moriarty

"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."