
“Wise men speak because they have something to say; Fools because they have to say something.”
“Wise men speak because they have something to say; Fools because they have to say something.”
Often attributed to Plato, it cannot be found in any of his writings ( see this http://languagelog.ldc.upenn.edu/nll/?p=796). The quote is attributed to Plato in A Dictionary of Thoughts: Being a Cyclopedia of Laconic Quotations from the Best Authors of the World, Both Ancient and Modern (page 560) by Tryon Edwards.
Misattributed
Introductio ad prudentiam: Part II (1727)
“Before I begin speaking, there is something I would like to say”
Attributed to Saul Gorn in: John G. Gammack et al. (2011) The Book of Informatics. p. 5