We must always be learning, because the field of computing is always evolving.
Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever.
The beauty of mathematics only shows itself to more patient followers.
"You gotta risk it to get the biscuit."
"Dreams don't work unless you do."