"A man can keep silence in such a ways that no one will even notice it. The whole point is that we say a good deal too much. If we limited ourselves to what is actually necessary, this alone would be keeping the silence. And it is the same with everything else, with food, with pleasures, with sleep; with everything there is a limit to what is necessary. After this "sin" begins. This is something that must be grasped, a "sin" is something which is not necessary."