Friday, January 25, 2013

“Without rudder or compass”

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OF THE MISTAKES MADE BY THOSE WHO PRACTISE WITHOUT KNOWLEDGE.

Those who are in love with practice without knowledge are like the sailor who gets into a ship without rudder or compass and who never can be certain whether he is going. Practice must always be founded on sound theory...

From the Notebooks of Leonardo da Vinci (1452-1519), Page 19 of 1565
http://interconnected.org/home/more/davinci/19.html

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