I noticed Cheri tagged her Myers-Briggs personality indicator on del.icio.us, prompting me to find my own and confirm that I’m just wired a certain way. Here are some bits of the INTJ - The Free-Thinker profile that struck home for me:
As adults, INTJs are focused on attaining their inner goals and standards. They set a particular course based on their theory of what ought to be. They are not easily dissuaded and may regard others’ needs and wants as an impediment to attaining their objectives.
By nature, INTJs are independent individualists. They see their visions so clearly that they are often surprised when others do not see things the same way. INTJs are strong at critiquing and as a result tend to notice the negatives. To them, a job well done should be reward enough in itself.
Some occupations seem to be especially attractive to INTJs: computer systems analyst, electrical engineer, judge, lawyer, photographer, …
INTJs look to the future rather than the past, and a word which captures the essence of INTJs is builder - a builder of systems and the applier of theoretical models.
“Builder” is certainly one of the words I would use to describe myself: websites, software, bikes, car stereos, …
They can be quite stubborn when information relayed to them by authorities, such as parents and teachers, contradicts what they believe. They are sure of their own belief system. INTJs are compelled to establish their own rules, boundaries, standards, and style.To INTJs authority based on position, rank, title, or publication has absolutely no force.
INTJs can be very single-minded at times; this can be either a weakness or a strength in their careers, for they can ignore the points of view and wishes of others.
Those two probably explain why I find corporate employment to be a poor fit sometimes.
Fellow workers of INTJs often feel as if the INTJ can see right through them, and often believe that the INTJ finds them wanting. This tendency of people to feel transparent in the presence of the INTJ often result in relationships which have psychological distance. Thus colleagues find the INTJ apparently unemotional and, at times, cold and dispassionate. Because of their tendency to drive others as hard as they do themselves, INTJs often seem demanding and difficult to satisfy.
And that would be why I sometimes enjoy working on my own.
As mates, INTJs want harmony and order in the home and in relationships. In social situations, INTJs may also be unresponsive and may neglect to observe small rituals designed to put others at their ease. For example, INTJs may communicate that time is wasted if used for idle dialogue, and thus people receive a sense of hurry from an INTJ which is not always intended.
“Brevity is the soul of wit”; no time for small talk 
Even mate selection must be done in a scientific way.
I could write a thesis on that particular point!
