Let's have some new cliches.

Samuel Goldwyn

Any great truth can -- and eventually will -- be expressed as a cliche -- a cliche is a sure and certain way to dilute an idea. For instance, my grandmother used to say, 'The black cat is always the last one off the fence.' I have no idea what she meant, but at one time, it was undoubtedly true.

Solomon Short

The computing field is always in need of new cliches.

Alan Perlis

Last, but not least, avoid cliches like the plague.

William Safire

It is a cliche that most cliches are true, but then like most cliches, that cliche is untrue.

Stephen Fry