"дурак дураку рознь" форест гамповское
Forrest may have a stupid face, but stupid is as stupid does; the way he behaves isn't stupid at all - Форест может быть и выглядит как идиот, но дурак лишь тот, кто ведет себя по-дурацки, а он поступает вовсе не как дурак.
Приведу более детальное описание из Гугла.
Forrest Gump's "Stupid is as stupid does" is a variant of an old adage, "Handsome is as handsome does. "This saying appears in J.R.R. Tolkien's "The Lord of the Rings" and in Herman Melville's "Billy Budd," and can be traced as far back as the 14th Century.
"Handsome is as handsome does" basically means that true handsomeness has to do with a person's behavior, not just a handsome face. The saying is also phrased in the forms "Pretty is as pretty does" and "Beauty is as beauty does."
Forrest's version of the saying means that stupidity is not just a surface thing derived from a person's appearance. Stupidity is a matter of deeds, not looks. Like the other versions, it comes down to this: judge people by what they do, not by how they appear.
"HANDSOME (PRETTY) IS AS HANDSOME (PRETTY) DOES - Good deeds are more important than good looks. The proverb was first recorded by Chaucer in 'The Wife of Bath's Tale' (c. 1387). In 1766, in the preface to 'The Vicar of Wakefield,' Oliver Goldsmith wrote: 'Handsome is that handsome does.' First attested in the United States in 'Journal of a Lady of Quality' (1774). The saying is found in varying forms, including 'Beauty is as beauty does'." From the 'Random House Dictionary of Popular Proverbs and Sayings' by Gregory Y. Titelman (Random House, New York, 1996)."
Phrases: Beauty is as Beauty Does
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