This is good advice, especially for those of us at a liberal arts college like Franklin & Marshall. We are often told, when we indicate that we have an interest in going to law school, that a liberal arts undergraduate education is a fantastic, if not ideal, preparation for a law degree. While this may true, many of us often extrapolate from this understanding that we are therefore guaranteed to succeed, or that law school is, more or less, an ideal choice for us.
It is important to understand that law school is not for everyone. Just because you enjoy and are good at reading complicated texts and thinking critically (valuable, liberal arts-instilled skills in their own right) doesn't mean that you will like or do well in law school. Law school requires certain interests, skills, and knowledge from its students that not everyone possesses. Whether or not you think you have the necessary background and the desire to go to law school, this is important to consider.