"I, Johannes Faust, do call upon thee, Mephistopheles!" "Now then, Faustus. What wouldst thou have Mephisto do?" "I will." bringest all the living creatures hollow thunder shake the hills "So, still I seek the force, the reason governing life's flow, and not just its external show." "The governing force? The reason? Some things cannot be known; they are beyond your reach even when shown." "Why should that be so?" "They lie outside the boundaries that words can address; and man can only grasp those thoughts which language can express." "What? Do you mean that words are greater yet than man?" "Indeed they are." "Then what of longing? Affection, pain or grief? I can't describe these, yet I know they are in my breast. What are they?"" "Without substance, as mist is." "In that case man is only air as well!"