Who said "Patience in adversity is a sign of true inner strength."?

This quote is attributed to Leopold Sédar Senghor.

Patience in adversity is a sign of true inner strength. - Leopold Sédar Senghor

"Patience in adversity is a sign of true inner strength."

Leopold Sédar Senghor Patience

President, Poet Senegalese 1906–2001

"Negritude is not a philosophy. It is not a religion. It is a way of living with the world."

"I am not afraid of being a Black man. I am proud of it."

"To claim our Negritude proudly as an asset, not as a complex."

"Art is not a luxury, but a necessity for mankind."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."