Who said "The only real progress is moral progress."?

This quote is attributed to Camus, Albert.

The only real progress is moral progress. - Camus, Albert

"The only real progress is moral progress."

Camus, Albert

Philosopher-Writer Algerian-French 1913–1960

"The only way to deal with an unfree world is to become so absolutely free that very existence is an act of rebellion."

"In the depth of winter, I finally learned that there was in me an invincible summer."

"The struggle itself toward the heights is enough to fill a man's heart."

"You will never be happy if you continue to search for what happiness consists of."