The impromptu reply is precisely the touchstone of the man of wit.
I have the knack of easing scruples.
Of all the noises known to man, opera is the most expensive.
Grammar, which knows how to control even kings.
The art of flatterers is to take advantage of the foibles of the great, to foster their errors, and never to give advice which may annoy.
People of quality know everything without ever having learned anything.