Who said "Dialogue builds understanding; violence builds walls."?

This quote is attributed to Félix Houphouët-Boigny.

Dialogue builds understanding; violence builds walls. - Félix Houphouët-Boigny

"Dialogue builds understanding; violence builds walls."

Félix Houphouët-Boigny Peace

President, Politician Ivorian 1905–1993

"Peace is not something you wish for; it's something you make, something you do, something you are, and something you give."

"The only true revolution is in the sphere of consciousness."

"A man who has no enemies is a man who has no conviction."

"Education is the most powerful weapon which you can use to change the world."

"Peace comes from a good conscience."

"Life is too short to hold grudges."

"A man's home is his sanctuary. It should be treated as such."

"The world is chaotic enough. At least your home should make sense."