Who said "Every obstacle is an opportunity to learn."?

This quote is attributed to Eratosthenes.

Every obstacle is an opportunity to learn. - Eratosthenes

"Every obstacle is an opportunity to learn."

Eratosthenes

Mathematician Geographer Ancient Greece 276–194

"Measure the Earth and you measure the heavens."

"Knowledge is the greatest treasure of all."

"The pursuit of truth requires courage and perseverance."

"In mathematics, all things are possible."