You want to make sure this particular car is going to please the customer and then you're going to be rewarded with something that is going to please the shareholder.

The person who knows one thing and does it better than anyone else even if it only be the art of raising lentils receives the crown he merits. If he raises all his energy to that end he is a benefactor of mankind and its rewarded as such.

Nothing in this world can take the place of persistence. Talent will not nothing is more common than unsuccessful people with talent. Genius will not unrewarded genius is almost a proverb. Education will not the world is full of educated failures. Persistence and determination alone are omnipotent.