Quote by Eratosthenes

"A man who stops learning has already begun his decline."

Eratosthenes
Mathematician Geographer Ancient Greece 276–194

More from Eratosthenes

"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."

All quotes by Eratosthenes