Who said "War is a nice quick way to test the mettle of your country."?

This quote is attributed to Gertrude Stein.

War is a nice quick way to test the mettle of your country. - Gertrude Stein

"War is a nice quick way to test the mettle of your country."

Gertrude Stein War

Novelist Poet American 1874–1946

"A rose is a rose is a rose."

"There is no there there."

"Everybody gets so much information all day long that they lose their common sense."

"You are all a lost generation."

"Some battles are worth fighting."

"Sometimes you have to become the monster to stop the monsters."

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."