Life of Saint Bernard
The primary biography of Bernard, describing his meditative method of learning Scripture among beeches and oaks rather than from books.
Preface and Praise of Sacred Scripture
-
Chapter V: On the Dispositions Required for This Study
— Book III, chapter 3 and Book I, chapter 4 cited: Bernard's masters were beeches and oaks
"he himself used to say repeatedly that in the study of Sacred Scripture he had no other masters than beeches and oaks"