How can we say nobody's perfect if there is no perfect to compare to? Perfection implies that there really is a right and wrong way to be. And what type of perfection is the best type? Moral perfection? Aesthetic? Physiological? Mental?
When I test I never go right to the limit. Only because when you are below the limit you can go at the same speed all day, and that's the only way you can be absolutely sure about what you are testing.
The average businessman began to be agnostic, not so much because he did not know where he was, as because he wanted to forget. Many of the rich took to scepticism exactly as the poor took to drink; because it was a way out.