We have intimated that our sense of the ludicrous varies in accordance with memory, imagination, observation, and association. The minds of some are so versatile, and so richly endowed with intellectual gifts, that their ideas sparkle and coruscate, they splinter every ray of light into a thousand colours, and produce all kinds of strange juxtapositions and combinations. (This exuberance has probably led to the seemingly contradictory saying that men of sentiment are generally men of humour.) No doubt their sallies would be poor and appreciated by themselves alone were they without a certain foundation, but a vast number of things are capable of affording amusement. Pleasantries often turn upon something much more difficult to define than to feel--upon some nicety of regard, or neatness of proportion. No interchange of ideas can take place without much beyond the letter being understood, and very much depends upon variety of delicate significations. Words are as variable and relative as thought, differing with time and place--a few constantly dropping out of use, some understood in one age, but conveying no distinct idea in another, and not calling up exactly the same associations in different individuals. We cannot, therefore, agree with Addison that translation may be considered a sure test for distinguishing between genuine and spurious humour--although it would detect mere puns. Voltaire says of Hudibras, "I have never met with so much wit in one book as in this--who would believe that a work which paints in such lively and natural colours the several foibles and frolics of mankind, and where we meet with more sentiment than words, should baffle the endeavours of the ablest translator?" But any alteration of words would generally destroy humour. "To go to the crows," was a good and witty expression in ancient Greece, but it does not signify anything to us, except, perhaps, climbing trees. When we wish a man to be devoured, we tell him to "go to the dogs." Even the flow and sound of words sometimes has great influence in humour.