The booklet argued that " those who do not have to work hard with their limbs , and those who are inclined to sit about " will " store up their protein for passion " , making retirement , for example , a period of increased passion and marital discord . He left several unpublished manuscripts , including a novel , Behind the Veil : More than Just a Tale ; a 67 @-@ page text called Passion and Protein ; and a 392 @-@ page version of Eight Passion Proteins , which , Carter write , was rejected by Oxford University Press in 1971 .