Perfection is immutable. But for things imperfect change is the way to perfect them. It gets the name of wilfulness when it will not admit of a lawful change to the better. Therefore constancy without knowledge cannot be always good. In things ill it is not virtue, but an absolute vice.
Owen FelthamThe greatest results in life are usually attained by simple means and the exercise of ordinary qualities. These may for the most part be summed up in these two - common sense and perseverance.
Owen Feltham