The ORIGIN OF MAN'S ETHICAL BEHAVIOR (1941) by ERNEST EVERETT JUST & HEDWIG SCHNETZLER JUST: A Moorland-Spingarn archival transcription created by Theodore Walker Jr. & Lillie R. Jenkins, co-edited by W. Malcolm Byrnes, in consultation with Stuart Newman

"The Origin of Man's Ethical Behavior" (unpublished manuscript, 1941) was co-authored by biologist Ernest Everett Just and research-associate-philosopher and spouse Hedwig A. Schnetzler Just.

In the opening chapter "The Problem Stated," they reject the idea that moral theory (theory of ethics) should be restricted to religion and philosophy. Just and Just say:
"... we intend to treat ethics as a problem in biology ... It is within the field of biology, then, that we locate human ethics, o...