To be successful, one must constantly learn and be open to learning.  Not only do case law, statutes and regulations change all the time, technology has drastically changed how law is practiced and how a law office is run as a business.  I was just telling my son the other day that in the late 1980’s attorneys were still researching the law “by hand” and Shepardizing cases to make sure cases were still good law based on a sliding scale of different-colored pamphlets to determine how current was the law cited by them or their opponent.