A man who thinks of something else, will not fail to take over and over again the same number and measure of steps, even to an inch, in the place where he walks; but if he made it his business to measure and count them, he will find that what he did by nature and accident, he cannot so exactly do by design.
 Michel de Montaigne, The Essays of Michel de Montaigne (1580). copy citation

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Author Michel de Montaigne
Source The Essays of Michel de Montaigne
Topic business accident
Date 1580
Language English
Reference
Note Translated by Charles Cotton
Weblink http://www.gutenberg.org/files/3600/3600-h/3600-h.htm

Context

“They offered an excellent archer, condemned to die, to save his life, if he would show some notable proof of his art, but he refused to try, fearing lest the too great contention of his will should make him shoot wide, and that instead of saving his life, he should also lose the reputation he had got of being a good marksman. A man who thinks of something else, will not fail to take over and over again the same number and measure of steps, even to an inch, in the place where he walks; but if he made it his business to measure and count them, he will find that what he did by nature and accident, he cannot so exactly do by design. My library, which is a fine one among those of the village type, is situated in a corner of my house; if anything comes into my head that I have a mind to search or to write, lest I should forget it in but going across the court, I am fain to commit it to the memory of some other.” source