181. Whatever the internal man produces and presents to sight and sense in the external is called a sign. If charity is in the internal it leads a man to reflect upon the evils within him, and actually to take cognizance of and know them, and so on. If he does not do this his external is not a sign of charity; and if yet his external is in worship and piety, it is not a sign of charity, but is external charity without internal charity, which is not charity.