Who said “The safest road to hell is the gradual one -- the gentle slope, soft underfoot, without…”?

“A perpetual holiday is a good working definition of hell.”

“To appreciate heaven well 'Tis good for a man to have some fifteen minutes of hell.”

“Hell hath no limits, nor is circumscrib'd In one self place; but where we are is hell, And where hell is, there must we ever be.”

“Hell is other people.”

“Hell is a half-filled auditorium.”

“All that is not eternal is eternally out of date.”

“Aim at heaven, and you will get earth thrown in; aim at earth, and you will get neither.”

“There is, hidden or flaunted, a sword between the sexes till an entire marriage reconciles them.”

“God cannot give us a happiness and peace apart from Himself, because it is not there. There is no such thing.”

“Can a mortal ask questions which God finds unanswerable? Quite easily, I should think. All nonsense questions are unanswerable.”

“Humans are amphibians -- half spirit and half animal. As spirits they belong to the eternal world, but as animals they inhabit time.”