“As turning the logs will make a dull fire burn, so change of studies a dull brain.”

“Beer dulls a memory, brand sets it burning, but wine is the best for a sore heart's yearning.”

“To a dull mind all of nature is leaden. To the illumined mind the whole world burns and sparkles with light.”

“It’s extraordinary how we go through life with eyes half shut, with dull ears, with dormant thoughts. Perhaps it’s just as well; and it may be that it is this very dullness that makes life to the incalculable majority so supportable and so welcome.”

“I've always said that idleness dulls the spirit. We have to keep the brain busy, or at least the hands if we don't have a brain.”

“All work and no play makes Jack a dull boy.”

“6372. All Work, and no Play,
Makes Jack a dull boy.”

“Anger makes dull men witty, but it keeps them poor.”

“If those extra-social brains are so potent, why after all do they effect so little? A dull police-officer, with the machine behind him, can afford to laugh at most experiments in anarchy.”

“The secret of a joyful life is to live dangerously. A joyful life is an active life - it is not a dull static state of so-called happiness. Full of the burning fire of enthusiasm, anarchic, revolutionary, energetic, daemonic, Dionysian, filled to overflowing with the terrific urge to create - such is the life of the man who risks safety and happiness for the sake of growth and happiness.”