I mean, I can tell within the first two minutes if I'm into someone or not. I can always tell if I get butterflies.
Mankind are apt to be strongly prejudiced in favor of whatever is countenanced by antiquity, enforced by authority, and recommended by custom.
The African American's relationship to Africa has long been ambivalent, at least since the early nineteenth century, when 3,000 black men crowded into Bishop Richard Allen's African Methodist Episcopal Church in Philadelphia to protest noisily a plan to recolonize free blacks in Africa.

