I’m trying to decide what I like most about Cambridge rep David Rogers’s maiden speech. It’s a toss-up among three things: One, Rogers waited three-and-a-half years to give his maiden speech; two, Rogers spoke lovingly of his recently deceased mother; three, Rogers was advocating for a good bill he’s sponsoring that would increase penalties on anyone convicted of trying to get someone else to commit a felony. An attorney, Rogers is obviously no show-off or camera hog. On the contrary, he seems remarkably secure and low-key for someone of his ilk. Rogers was first elected in the fall of 2012 and re-elected two years later. Yet he waited til the second year of his second term was almost half over before formally addressing his colleagues from the House rostrum on June 22. Most politicians get this over with in their rookie years. Lyndon Johnson famously divided legislators into two categories: show horses and workhorses. This Rogers has to be a wo...