"The philosophical author is the leader, his reader the wanderer. If they are to arrive together, they must above all start out together; in other words, the author must take up his reader at a standpoint which they undoubtedly have in common. This, however, can be none other than that of empirical consciousness that is common to us all. Let him, therefore, take him firmly by the hand and see how high above the clouds he can reach, step by step on the mountain path."