Who said “Mediocrity can talk, but it is for genius to observe.”?

“Good behavior is the last refuge of mediocrity.”

“Some men are born mediocre, some men achieve mediocrity, and some men have mediocrity thrust upon them.”

“One would like to be grand and heroic, if one could; but if not, why try at all? One wants to be very something, very great, very heroic; or if not that, then at least very stylish and very fashionable. It is this everlasting mediocrity that bores me.”

“In the republic of mediocrity, genius is dangerous.”

“Mediocrity requires aloofness to preserve its dignity.”

“We moralise among ruins.”

“Silence is the mother of truth.”

“Duty cannot exist without faith.”

“Man is more powerful than matter.”

“Success is the child of audacity.”

“There is no education like adversity.”