This is when human beings who thought they could use language as an instrument of communication

learn through the feeling of pain which accompanies silence

(and of pleasure which accompanies the invention of a new idiom),

that they are summoned by language, not to augment to their profit the quantity of information communicable through existing idioms,

but to recognize that what remains to be phrased exceeds what they can presently phrase,

and that they must be allowed to institute idioms which do not yet exist.