Nice thoughts from Programmer
http://www.joelonsoftware.com/items/2009/09/23.html
Reminds me a nice incident narrated to me by my civil engineer friend.
My Friend has to deign a curve. He used all his techniques to come up with the angle
but could not come up calculation.
Then a labour came forward to help him. With his rudimentary tool, he just drew the curve and finished the job.