Hermann Hesse said this quote

...the Master and the boy followed each other as if drawn along the wires of some mechanism, until soon it could no longer be discerned which was coming and which going, which following and which leading, the old or the young man. Now it seemed to be the young man who showed honour and obedience to the old man, to authority and dignity; now again it was apparently the old man who was required to follow, serve, worship the figure of youth, of beginning, of mirth. And as he watched this at once senseless and significant dream circle, the dreamer felt alternately identical with the old man and the boy, now revering and now revered, now leading, now obeying; and in the course of these pendulum shifts there came a moment in which he was both, was simultaneously Master and small pupil; or rather he stood above both, was the instigator, conceiver, operator, and onlooker of the cycle, this futile spinning race between age and youth.