A
quotation is a fragment of a human expression that is being referred to by somebody else. Most often an quotation is taken from
literature, but also sentences from a speech
?, scenes from a
movie, elements of a
painting, etc. may be quoted.
Proverbs and quotations have similar cultural influence. In case of extensive quoting from a work one need to consider copyright and fair use.
References
A huge collection of quotations is found at:
/Talk