A Yale University management professor in response to student Fred Smith's paper proposing reliable overnight delivery service: The concept is interesting and well-formed, but in order to earn better than a 'C', the idea must be feasible.
Know what is evil, no matter how worshipped it may be. Let the man of sense not mistake it, even when clothed in brocade, or at times crowned in gold, because it cannot thereby hide its hypocrisy, for slavery does not lose its infamy, however noble the master.