As an INFJ, you are hardworking, committed to your ideals and pride yourself on your integrity. Very perceptive about people and a good listener, you are skilled at generating creative solutions to people's problems. A thoughtful and careful decision maker, you prefer to have plenty of time to let your ideas "percolate" before taking action. And you tend to be a perfectionist, and quite driven to accomplish your goals.
I never cease to be amazed at the spot-on accuracy of the Myers-Briggs Type Indicator (MBTI). Amongst all the personality tests, and I've almost done all of them, I still prefer MBTI for its accuracy and simplicity.