Vlad-Harkonnen the Clerig

"It's assumed that ultimate conditioning cannot be removed without killing the subject. However, as someone once observed, given the right lever you can move a planet. We found the lever that moved the doctor."

- The Baron's twisted Mentat Piter De Vries notes.

"Are you already training my replacement? Piter demanded.
"Replace you? Why, Piter, where could I find another Mentat with your cunning and venom?"
"The same place you found me, Baron."
"Perhaps I should at that," the Baron mused. "You do seem a bit unstable lately. And the spice you eat!"
"Are my pleasures too expensive, Baron? Do you object to them?"
"My dear Piter, your pleasures are what tie you to me. How could I object to that?"

- Frank Herbert, Dune