"The great secret of succeeding in conversation is to admire little, to hear much, to contradict seldom, and to use all the good manners one can."

"Money can't buy happiness, but it can make you awfully comfortable while you're being miserable."

"The greatest invention of the 19th century was the discovery of the 18th century."

"In this world nothing is certain but death and taxes."

"Love your enemies, for they tell you your faults."