15 Signs You're an Entrepreneur
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Reminds me of the story of Lamborghini. There was a young fellow named Ferruccio Lamborghini who built tractors for a living. He bought a Ferrari and was disappointed, so he approached Enzo Ferrari with ideas to improve it. But Ferrari, in his arrogance, didn't want advice from a lowly tractor mechanic. Not taking no for an answer, Ferruccio decided he would build his own sports car instead. The rest is history. I don't know if that's true, but it's a great story.
Moral of the story: If someone approaches you with a criticism, be quiet and listen.
More info: http://www.lamboweb.com/History.htm