It's so hard when contemplated in advance, and so easy when you do it. - Robert M. Pirsig

The best students always are flunking. Every good teacher knows that.

Who really can face the future? All you can do is project from the past, even when the past shows that such projections are often wrong. And who really can forget the past? What else is there to know?

It should be inserted here parenthetically that there's a school of mechanical thought which says I shouldn't be getting into a complex assembly I don't know anything about. I should have training or leave the job to a specialist. Thats a self-serving school of mechanical eliteness I'd like to see wiped out. [...] You're at a disadvantage the first time around it may cost you a little more because of parts you accidentally damage, and it will almost undoubtedly take a lot more time, but the next time around you're way ahead of the specialist. You, with gumption, have learned the assembly the hard way and you've a whole set of good feelings about it that he's unlikely to have.