1: Thick skin
You need it to be able to put up with reading this article.
2: Persistence
This is necessary to keep you coming back to this dribble as my sides were aching from laughing so hard at such off the mark $#1t.
3: Youth
The reason for laughing so hard. I'm 53, all the "Youth" comes to me looking for answers, which I can give them. They can have all the book smarts you can pack 'em with. The wisdom of what to use when and moreover why isn't in the books.
4: Patience
To keep telling the "Youth" the same answers over and over and not blowing your top.
5: Skills
See the third sentence it #3. Skills don't come from a book. If you want to work on computers... Think like one.
6: The ability to improvise
And fix the impetuous mistakes of youth.
7: A good sense of PR
To keep from knocking the egotistical latter climbers on their respective butts when they tell everyone how good they are and can't back it up.
8: Connections
I had a lot of connections back in the '70s. But that's another story.

The only connections I seem to have are those asking questions.
9: The desire to learn
This is the one that should have started with the sentence. "This one should go without saying."
My parents told my when I was young. "The day you stop learning is the day they put a Lilly in your hand." I. E. You'll be DEAD.
10: Passion
This one is redundant again... LOL See #9. No passion, no learning. The key to ANY learning is passion / desire.
Jack, I've enjoyed your articles for a long time. This one however, should have either been given more thought, or stayed home.