Who said "Measure twice, conclude once"?

This quote is attributed to Aristarchus.

Measure twice, conclude once - Aristarchus

"Measure twice, conclude once"

Aristarchus Patience

Astronomer Ancient Greece 310–230

"The sun is a star"

"All things move in circles"

"Observe the heavens with patience and precision"

"The universe reveals its secrets to those who question"

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."