Knowledge of instrumentation should be acquired through experience. Instrumental composition should be conceived instrumentally, imagining and hearing a particular orchestra for each particular and diverse musical condition of the mind.
I address myself to the young. They alone will have to listen to me, they alone will be able to understand me. Some people are born already old, drooling specters from the past, cryptograms tumid with poisons: to them, no words or ideas except a single injunction: the end.