Humor, to be comprehensible to anybody, must be built upon a foundation with which he is familiar. If he can't see the foundation the superstructure is to him merely a freak -- like the Flatiron building without any visible means of support -- something that ought to be arrested.
Mark TwainWe are discreet sheep; we wait to see how the drove is going, and then go with the drove. We have two opinions: one private, which we are afraid to express; and another one - the one we use - which we force ourselves to wear to please Mrs. Grundy, until habit makes us comfortable in it, and the custom of defending it presently makes us love it, adore it, and forget how pitifully we came by it. Look at it in politics.
Mark TwainWritten things are not for speech; their form is literary; they are stiff, inflexible, and will not lend themselves to happy and effective delivery with the tongue-where their purpose is to merely entertain, not instruct; they have to be limbered up, broken up, colloquialized and turned into common forms of premeditated talk-otherwise they will bore the house and not entertain it.
Mark Twain