For every teacher/student: This is Rainer Maria Rilke's letters to a young poet written from 1903-08.

http://www.carrothers.com/rilke_main.htm

"Letters To A Young Poet are ten letters written to a young man about to enter the German military. His name was Franz Kappus, he was 19 years old, and he wrote Rilke looking for guidance and a critique of some of his poems. Rilke was himself only 27 when the first letter was written. The resulting five year correspondence is a virtual owner's manual on what it is (and what is required) to be an artist and a person."