No man knows what he can do until he tries. Author: Carter G. Woodson Copy Quote More from Carter G. Woodson “Philosophers have long conceded, however, that every man has two educators: 'th…” “At this moment, then, the Negroes must begin to do the very thing which they ha…” “If the Negro in the ghetto must eternally be fed by the hand that pushes him in…” “What we need is not a history of selected races or nations, but the history of …”