"Scepticism is the freedom which thought achieves in itself."

"Man is a thinking being, a being that thinks."

"The world spirit is a spirit that does not suffer itself to be confined to one nation, but passes from nation to nation, from period to period."

"The mind is its own place, and in itself can make a heaven of hell, a hell of heaven."

"The Idea is the truth of itself, and the truth of everything else."