Jung, C. G. - Psychological Reflections (Princeton, 1970)

Futile the talk that is bandied about, when many

Join in, each listening only to his own words or hearing

Only himself speaking in the words of his neighbour.

It is the same with books; for everyone will

Read out of the book only himself or will forcibly

Read himself into it, making the strangest amalgam.

Utterly futile, therefore, to endeavour by writing

To change a man's fixed inclination, the bent of his mind.

You will only succeed in confirming him in his opinions

Or, if he has none, drenching him with your own.

GOETHE, "First Epistle