Mephistopheles

And next, before aught else you learn, You must with zeal to metaphysics turn! There see that you profoundly comprehend, What doth the limit of man's brain transcend; For that which is or is not in the head A sounding phrase will serve you in good stead. But before all strive this half year From one fix'd order ne'er to swerve!

Five lectures daily you must hear; The hour still punctually observe! Yourself with studious zeal prepare, And closely in your manual look, Hereby may you be quite aware That all he utters standeth in the book; Yet write away without cessation, As at the Holy Ghost's dictation!