Who said "Secrecy is the only thing that keeps power alive."?

This quote is attributed to Silas.

Secrecy is the only thing that keeps power alive. - Silas

"Secrecy is the only thing that keeps power alive."

Silas Power

Character in The Da Vinci Code

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"Redemption requires sacrifice."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."