Tu quoque is a Latin phrase I first learned in a philosophy of logic class as a common fallacy. The direct translation would be “you likewise” but was used in a pretty clever context. The argument was along the lines that Newt Gingrich, for example, after being married several times and being distant from his children, has no right to preach family values. Why should this be… his advice on family values remains sound. Exclaiming “tu quoque” to him is not a sound argument against his speaking on family values. Although I have no opinion on the Gingrich, I do feel his critics often take a poor approach to attacking him. I don’t feel one has to practice what they preach… my father telling me not to smoke when he used to be a 2 pack-a-day smoker, Dr. Laura giving psychological advice when she is a Dr. of English and clearly insane, hell, Jeffery Dalmer telling me eating people is wrong; it’s still good advice and I have no right to criticize it.