William Butler Yeats: Rhetoric and poetry

“Out of the quarrel with others we make rhetoric; out of the quarrel with ourselves we make poetry.”

-William Butler Yeats, writer, Nobel laureate (1865-1939). 

Charles Mayo: Vivisection

I abhor vivisection. It should at least be curbed. Better, it should be abolished. I know of no achievement through vivisection, no scientific discovery, that could not have been obtained without such barbarism and cruelty. The whole thing is evil. –Charles Mayo, physician and founder of the Mayo Clinic (1865-1939)