[wilburTheDog]

Does #5 sound like a tautology to anyone else?

"In order to know how to solve problems get more experience solving problems so you know how."

or maybe

"To know the answers to your questions learn what you need to know to answer them"

[ChrisMarshallNY]

"Good judgment comes from experience. Experience comes from bad judgment."

One of my fave quotes (Attributed to "Nasrudin," but usually referenced from Will Rogers or Rita Mae Brown).

[marginalia_nu]

It's very much true though. A master has failed far more times than a beginner has tried.