For my own part I think no innocent species of wit or pleasantry should be suppressed: and that a good pun may be admitted among the smaller excellencies of lively conversation.
A man who could make so vile a pun would not scruple to pick a pocket.
People who make puns are like wanton boys that put coppers on the railroad tracks. They amuse themselves and other children, but their little trick may upset a freight train of conversation for the sake of a battered witticism.
A pun is not bound by the laws which limit nicer wit. It is a pistol let off at the ear; not a feather to tickle the intellect.