“This is the shade of difference: the door of the physician should never be shut, the door of the priest should always be open.”
“This is the shade of meaning: the door of a physician should never be closed; the door of a priest should always be open.”
“A doctor’s door should never be closed, a priest's door should always be open.”
“Knowledge of what is does not open the door directly to what should be.”
“You should open these doors with care and caution-but, first, you must know how to close them. And above all, you must know which doors should be left unopened...”
“For each door of sadness that opens, there are a thousand means of shutting it...”