Who said "Solitude is the only honest company one can keep."?

This quote is attributed to Grim.

Solitude is the only honest company one can keep. - Grim

"Solitude is the only honest company one can keep."

Grim Solitude

"I'm a creature of pure evil, and I find your optimism... disturbing."

"Foolish boy, your mortal comprehension cannot fathom my dark intentions."

"Death is my business, and business is good."

"Your pitiful existence amuses me."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."