Personality types

Personality types
ISTJ – Serious and quiet, interested in security and peaceful living. Extremely thorough responsible, and dependable. Well-developed powers of concentration. Usually interested in supporting and promoting traditions and establishments. Well-organized and hard working, they work steadily towards identified goals. They can usually accomplish any task once they have set their mind to it.

ISTP – Quiet, reserved, interested in how and why things work. Excellent skills with mechanical things. Risk-takers who they live for moment. Usually interested in and talented at systems, but not overly concerned with respecting laws and rules if they get in the way of getting something done. Detached and analytical, they excel at finding solutions to practical problems.

de·tached adj.
Separated; disconnected: a detached part; a detached plug.
Standing apart from others; separate: a house with a detached garage. Marked by an absence of emotional involvement and an aloof, impersonal objectivity. See Synonyms at cool.