How are you to sift the wheat from the chaff?
“Oh! it’s a bad thing to live, and no longer believe and trust in your father, Tray! to doubt either his honesty or his intelligence. For he (with your mother to help) has taught you all the best he knows, if he has been a good father – till someone else comes and teaches you better – or worse! And, then, what are you to believe of what good still remains of all that early teaching – and how are you to sift the wheat from the chaff”
– From Trilby (Du Maurier, George)