Who said "The deepest truths are often the simplest ones."?

This quote is attributed to Leonhard Euler.

The deepest truths are often the simplest ones. - Leonhard Euler

"The deepest truths are often the simplest ones."

Leonhard Euler Knowledge

Mathematician Swiss 1707–1783

"Read Euler, read Euler, he is the master of us all."

"The beauty of a mathematical proof lies not in its length but in its elegance."

"Life is but a moment, yet mathematics is eternal."

"In mathematics, you don't understand things. You just get used to them."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."