Law firms have a certain company culture. The hiring partner wants to know not only how your education or skills will benefit the firm, but how you will fit within this culture. A question like this is another opportunity to share who you are as a person. While it is tempting to make yourself fit in by providing an answer you believe they will like, it is better for everyone to simply be honest. Interviews are more than a hiring partner interviewing you; you should also be interviewing the firm. This is a place where you will spend the majority of your day. You will find it more enjoyable if your values and passions truly do fit within the company culture of the law firm where you work.