percentage preferances : I=56 N=67 T=11 P=44
Many regard this attitude as arrogant, and Architects[the term this write-up used for INTP] are likely, especially in their later years, after finding out that most others are faking an understanding of the laws of nature, to think of themselves as the prime movers who must pit themselves against nature and society in an endless struggle to define ends clearly and adopt whatever means that promise success.
" from here.
INTPs are pensive, analytical folks. They may venture so deeply into thought as to seem detached, and often actually are oblivious to the world around them.
Precise about their descriptions, INTPs will often correct others (or be sorely tempted to) if the shade of meaning is a bit off.
" from here (a write-up which I feel may be more accurate than the other one).
Take the test (72 questions) here.