INTJ

(Introvert, Intuitive, Thinker, Judger)         

People of this type tend to be: autonomous, aloof, and intellectual; imaginative, innovative, and unique; critical, analytical, and logical; intellectually curious, driven to learn and increase their competence and knowledge; socially cautious and reserved; organized and definitive. Sound like you? check it out:

http://www.personalitypage.com/INTJ.html

What are you?

http://www.braintypes.com/questionnaire.asp

http://www.personalitytype.com/quiz.asp