for no man, be he never so cunning or practised, can make a straight line or perfect circle by steadiness of hand, which may be easily done by help of a ruler or compass.
 Francis Bacon, The Advancement of Learning (1605). copy citation

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Author Francis Bacon
Source The Advancement of Learning
Topic steadiness help
Date 1605
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/5500/5500-h/5500-h.htm

Context

“But they ought to have charged the deceit upon the weakness of the intellectual powers, and upon the manner of collecting and concluding upon the reports of the senses. This I speak, not to disable the mind of man, but to stir it up to seek help; for no man, be he never so cunning or practised, can make a straight line or perfect circle by steadiness of hand, which may be easily done by help of a ruler or compass. (5) This part of invention, concerning the invention of sciences, I purpose (if God give me leave) hereafter to propound, having digested it into two parts: whereof the one I term experientia literata, and the other interpretatio naturæ;” source