Most lawyers have made so profound a study of human nature as to think that if they have shown a man to be of loose life with regard to women they have shown him to be one that would tell needless lies to a jury--a conviction unsupported by the familiar facts of life and character. Different men have different vices, and addiction to one kind of "upsetting sin" does not imply addiction to an unrelated kind. Doubtless a rake is a liar in so far as is needful to concealment, but it does not follow that he will commit perjury to save a horsethief from the penitentiary or send a good man to the gallows. As to lying, generally, he is not conspicuously worse than the mere lover, male or female; for lovers have been liars from the beginning of time. They deceive when it is necessary and when it is not. Schopenhauer says that it is because of a sense of guilt--they contemplate the commission of a crime and, like other criminals, cover their tracks. I am not prepared to say if that is the true explanation, but to the fact to be explained I am ready to testify with lifted arms. Yet no cross-examining attorney tries to break the credibility of a witness by showing that he is in love. An habitual liar, if disinterested, makes about as good a witness as anybody. There is really no such thing as "the lust of lying:" falsehoods are told for advantage--commonly a shadowy and illusory advantage, but one distinctly enough had in mind. Discerning no opportunity to promote his interest, tickle his vanity or feed a grudge, the habitual liar will tell the truth. If lawyers would study human nature with half the assiduity that they give to resolution of hairs into their longitudinal elements they would be better fitted for service of the devil than they have now the usefulness to be. I have always asserted the right and expediency of cross-examining attorneys in court with a view to testing their credibility. An attorney's relation to the trial is closer and more important than that of a witness. He has more to say and more opportunities to deceive the jury, not only by naked lying, but by both _suppressio veri_ and _suggestio falsi_. Why is it not important to ascertain his credibility; and if an inquiry into his private life and public reputation will assist, as himself avers, why should he not be put upon the grill and compelled to sweat out the desired incrimination? I should think it might give good results, for example, to compel him to answer a few questions touching, not his private life, but his professional. Somewhat like this: "Did you ever defend a client, knowing him to be guilty?" "What was your motive in doing so?" "But in addition to your love of fair play had you not also the hope and assurance of a fee?" "In defending your guilty client did you declare your belief in his innocence?" "Yes, I understand, but necessary as it may have been (in that it helped to defeat justice and earn your fee) was not your declaration a lie?"