Socrates said, our only knowledge was "To know that nothing...

Socrates said, our only knowledge was "To know that nothing could be known;" a pleasant Science enough, which levels to an ass Each Man of Wisdom, future, past, or present. Newton, (that Proverb of the Mind,) alas! Declared, with all his grand discoveries recent, That he himself felt only "like a youth Picking up shells by the great Ocean-Truth."