“The saying, "Practice is everything," is Periander’s.”
Periander, 6.
The Lives and Opinions of Eminent Philosophers (c. 200 A.D.), Book 1: The Seven Sages
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Diogenes Laërtius 107
biographer of ancient Greek philosophers 180–240Related quotes

“In practical administration, experience is everything.”
Napoleon : In His Own Words (1916)

“You cannot overestimate the unimportance of practically everything.”

Go Rin No Sho (1645), The Ground Book

“Maybe money can't buy love - but it can get you practically everything else.”
Source: The Perfect Christmas

Quoted in: Ingo F. Walther (1996), Picasso, p. 67.
Attributed from posthumous publications

“Everything the State says is a lie, and everything it has it has stolen.”
Thus Spoke Zarathustra: A Book for All and None, Part I, Chapter 11, "Vom neuen Götzen" ("The New Idol"). Published in four parts between 1883 and 1891 Another translation: “But the state lieth in all languages of good and evil; and whatever it saith it lieth; and whatever it hath it hath stolen.”

Letter to Emily Holmes Coleman (2 February 1934) http://www.case.edu/artsci/engl/VSALM/mod/brandelmcdaniel/index/library.htm