"A language should be designed in terms of an abstract syntax and it should have perhaps, several forms of concrete syntax: one which is easy to write and maybe quite abbreviated; another which is good to look at and maybe quite fancy... and another, which is easy to make computers manipulate... all should be based on the same abstract syntax... the abstract syntax is what the theoreticians will use and one or more of the concrete syntaxes is what the practitioners will use."
-- John McCarthy, creator of Lisp
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