“As to the pure mind all things are pure, so to the poetic mind all things are poetical”

“A wise man seeks wisdom; a madman thinks that he has found it.”

“Sit in reverie, and watch the changing color of the waves that break upon the idle seashore of the mind”

“Knowledge is like a baobab tree - one person's arms are not enough to encompass it”

“The thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have”

“Logic is the anatomy of thought”