An instrument is only as true as the hand that guides it and... - Hipparchus

"An instrument is only as true as the hand that guides it and the mind that interprets it."

Hipparchus

Astronomer Mathematician Anatolia (Nicaea) 190–120

More from Hipparchus

"The stars are the land-marks of the universe."

"In the celestial sphere, we find the truth of all things."

"Measure twice, cut once; observe twice, conclude once."

"The heavens declare the glory of precision."