man had no scruples against bringing it about. He must have been a very passionate being, more cruel and vicious than other animals. He liked to kill and did it as a matter of course. Nor need we attribute to him the instinct which restrains other animals from killing and devouring their own species.
As a matter of fact the primitive history of mankind is filled with murder. The history of the world which is still taught to our children is essentially a series of race murders. The dimly felt sense of guilt under which man has lived since archaic times, and which in many religions has been condensed into the assumption of a primal guilt, a hereditary sin, is probably the expression of a blood guilt, the burden of which primitive man assumed. In my book entitled "Totem and Taboo,"
50
