By @LucilleClerc (but being misattributed to Banksy) on the Charlie Hebdo killings:
Tamara Oweibo, in http://www.quora.com/What-is-the-most-interesting-mental-illness-and-why :
Ataraxia - always being in a lucid state of robust tranquility, characterized by ongoing freedom from distress and worry.
A friend of mine suffers from this disease.... he works (computer programmer) only because he enjoys it... he really doesn't care how much his employer pays or whether his girlfriend cheats on him or whether or not doing something might be detrimental to him. he is very aware of the implications of everything he does... but feels no form of worry.
Man, I am jealous. I kind of hoped that an intellectual path to existential pseudo-enlightenment might get be closer to this. And in some ways it has, but the worried lizard ape in still kind of runs the joint.