This is an interesting question and I'm looking forward to reading the responses to it. I have little understanding on enneagram other than that I am 5w6.
Hope is the denial of reality. It is the carrot dangled before the draft horse to keep him plodding along in a vain attempt to reach it. We should remove the carrot and walk forward with our eyes open. -- Raistlin Majere
Just my quick overall impression.
A man builds. A parasite asks 'Where is my share?'
A man creates. A parasite says, 'What will the neighbors think?'
A man invents. A parasite says, 'Watch out, or you might tread on the toes of God... '
"I don't believe in guilt, I only believe in living on impulses"
"Stereotypes about personality and gender turn out to be fairly accurate: ... On the binary Myers-Briggs measure, the thinking-feeling breakdown is about 30/70 for women versus 60/40 for men." ~ Bryan Caplan
I'm curious about Type 1 INTJs. Ni is, in description, the function that should be most in-tune to the relativity of things, and best at seeing things from a variety of perspectives, whereas Type 1s... struggle with this. To put it diplomatically.
Dost thou love Life? Then do not squander Time; for that's the Stuff Life is made of.
-- Benjamin Franklin, Poor Richard's Almanack, June 1746 --