The maxim of Cleobulus, "Mediocrity is best," has been long considered a universal principle, extending through the whole compass of life and nature. The experience of every age seems to have given it new confirmation, and to show that nothing, however specious or alluring, is pursued with propriety or enjoyed with safety beyond certain limits.
Samuel JohnsonLife, to be worthy of a rational being, must be always in progression; we must always purpose to do more or better than in time past.
Samuel Johnson