TWO:In his attacks on the prevalent theories of ethics, Aenesid��mus again reminds us both of Protagoras and of modern agnosticism. According to him, the general disagreement of mankind proves, among other things, that there is no definable highest good��it is neither virtue, nor pleasure, nor knowledge.298 In the absence of any dogmatic teaching on the subject at the time when he lived, Protagoras could not give an opinion with regard to the summum bonum; but Plato��s famous dialogue represents him as one who, from his point of view, would be unwilling to admit the possibility of introducing fixed principles into conduct; and in like manner, Mr. Herbert Spencer, while accepting the hedonistic principle, gives it such an extremely general signification that he is thrown back on the sceptical principle of leaving everyone free to follow his own inclinations, provided that, in so doing, he does not interfere with the liberty of others."Of course they will. But there are viler crimes than the theft of diamonds. There is the conspiracy to rob a good man of his good name, to make the lives of that man and the girl he is going to marry dark for the sake of a passing caprice. I tell you this has been done, and a murder has been committed in the doing of it. And I am going to get to the bottom of the foul tangle."