In a previous article, said:
What in your view are the easiest and hardest aspects about flying? I
mean in the phase between takeoff and touchdown, so the obvious
"taxiing" doesn't count

Hardest would be countering windshear on finals or flying IFR through a
storm at low altitude, I'd imagine.

The hardest aspect of flying, and the most important to master, is the
ability to say "no, I don't think so, maybe tomorrow" when you or your
passengers really want to get where you were planning to go. Whether it's
weather, a minor squawk, or just a bad feeling at the back of your head,
you've got to know when to say "no", and how to make that "no" stick.


--
Paul Tomblin http://xcski.com/blogs/pt/
Any sufficiently advanced technology is indistinguishable from magic.
-- Arthur C. Clarke