“The powers of a man's mind are directly proportioned to the quantity of coffee he drinks.”

“The philosopher Sir James Mackintosh had said that the powers of a man's mind were proportionate to the quantity of coffee he drank, and Voltaire had knocked back fifty cups of it a day, so Ianto reckoned there had to be something in it. And saving Cardiff from the kinds of things that came through the Rift called for quick, inspired thinking, so Ianto took it upon himself to make sure the coffee was good. Ianto Jones, saving the world with a dark roast.”

“The quality of a man's life is in direct proportion to his commitment to excellence.”

“We can state with conviction, therefore, that a man's support for absolute government is in direct proportion to the contempt he feels for his country.”

“The degree of slowness is directionally proportional to the intensity of memory. The degree of speed is directionally proportional to the intensity of forgetting.”

“I think coffee is the best drink known to man. I also think that wine is the best drink known to woman.”