Know or listen to those who know.
Wherever you are - be all there.
It's always too early to quit.
Be thine own palace, or the world's thy jail.
What you do today can improve all your tomorrows.
Quality is not an act, it is a habit.
Never complain and never explain.
If you've got a talent, protect it.
To know oneself, one should assert oneself.
Always desire to learn something useful.
We know that a man can read Goethe or Rilke in the evening, that he can play Bach and Schubert, and go to his day's work at Auschwitz in the morning.