Who said “There is no such thing on earth as an uninteresting subject; the only thing that can…”?

“Authors have established it as a kind of rule, that a man ought to be dull sometimes; as the most severe reader makes allowances for many rests and nodding-places in a voluminous writer.”

“Prudent dullness marked him for a mayor.”

“Dullness is the coming of age of seriousness.”

“It is to be noted that when any part of this paper appears dull there is a design in it.”

“What can he mean by coming among us? He is not only dull himself, but the cause of dullness in others.”

“All slang is metaphor, and all metaphor is poetry.”

“The world will never starve for want of wonders; but only for want of wonder.”

“You can only find truth with logic if you have already found truth without it.”

“[A]rt is limitation. [...] The most beautiful part of every picture is the frame.”

“The true object of all human life is play. Earth is a task garden; heaven is a playground.”

“The Christian ideal has not been tried and found wanting. It has been found difficult; and left untried.”