[40] This is apparent from the fact that those who in the beginning brought charges of homicide, and desired to settle their mutual differences by reason and not by violence, tried their cases under our laws.[30] Yes, and the arts also, both those which are useful in producing the necessities of life and those which have been devised to give us pleasure, she has either invented or stamped with her approval, and has then presented them to the rest of the world to enjoy.[31]