““Have (with the help of convention) found the solution of everything in ease and the easiest side of ease; but it is clear that we’ must hold to the difficult; everything living holds to it, everything in Nature grows and defends itself according to its own character and is an individual in its own right, strives to be so at any cost and against all opposition. We know little, but that we must hold to the difficult is a certainty that will not leave us; it is good to be solitary, for solitude is difficult; the fact that a thing is difficult must be one more reason for our doing it.””