(c) Hypocrisy in the widest sense assumes the appearance of a high degree of sanctity above that requisite for salvation, as when a person of ordinary goodness tries to gain the reputation of miracle-worker, or to pass as one better than others in faith, zeal, humility, etc. This sin is not mortal in itself, but it may become mortal on account of some motive, some means, or some other circumstance. There is no hypocrisy at all, however, in showing oneself for the virtue one really has; on the contrary, he lies, who being good pretends that he is not good, or who being free of a vice pretends that he is guilty of it.

2406. Self-Glorification and Self-Depreciation.—Two forms of lying about self are self-glorification and self-depreciation.

(a) Braggadocio is untruthful self-glorification, as when one pretends to be of royal descent, or makes a display of wealth beyond one’s means, or poses as an authority on matters of which one is ignorant, or tries by bluff to make one’s defects seem perfections. This sin is mortal when the lie is seriously injurious to God or others (Ezech., xxviii. 2, Luke, xviii. 11), or when the motive is gravely sinful, such as grave arrogance, ambition, or avarice.

(b) Feigning of defects (irony) is untruthful self-depreciation, as when one falsely denies a good quality which one possesses (e.g., an excessively humble man denies the good deeds that others ascribe to him, though he knows they are real), or when one falsely admits a bad quality which one lacks (e.g., a person who wishes to curry favor accuses himself of misdeeds which he knows never happened). This sin is usually less than braggadocio, since as a rule its purpose is to avoid offense to others; but it may be serious sin on account of some circumstance, as when one speaks ill of self in order to scandalize or seduce another. At times the feigning of defects is a concealed braggadocio, as when one dresses in rags, hoping by this expedient to acquire repute as a person of great spirituality (Prov., xxvi, 25; Matt., vi. 16; Ecclus., xix. 23).

2407. Infidelity and Violation of a Secret.—It remains to speak of the vices of infidelity and violation of secret (see 2388 a). As to the former, since it has been discussed elsewhere (1877 sqq., 1888, 1889; see also the matter on Promissory Oaths), it will suffice here to ask the question: Is the breach of a promise freely given a sin?

(a) If observance of the promise is due from fidelity only, there is no legal fault, but there is moral fault, and hence the breach of the promise is a sin. The malice is essentially the same as that of untruthfulness (see 2395), for both the liar and the promise-breaker show themselves unreliable, the former because his words do not square with his mind and the latter because his deeds do not live up to his plighted word. Breach of promise, then, seems _per se_ to be a venial sin, though there are often circumstances (such as damage done) that make it mortal.

(b) If observance of the promise is not due even from fidelity, on account of the presence of some defect, there is no moral obligation to keep the promise and no sin is committed by not keeping it. The defects referred to are such as make the promise lack force from the beginning (e.g., if it was immoral or extorted by force), or deprive it of the force it had (i.e., inability on the part of the promisor or loss of right on the part of the promisee). The promisor is unable to keep the promise, if the thing promised has become physically impossible (e.g., he no longer has the strength or the means to perform what he promised), or morally impossible (e.g., the thing promised has become unlawful, or a notable change has taken place which, could it have been foreseen, would have prevented the promise). The promisee loses his right if the sole or principal reason that dictated the promise has ceased, or if the promise has become useless to the promisee, or if the promisor has been released, or if the promisee forfeits his claim by his own perfidy towards the promisor (see 2256 sqq., 1889).

2408. Definition of a Secret.—A secret is a matter (e.g., an invention, valuable information, concealed virtues, the fact that a crime has been committed) known privately by only one person or by so few that it is neither public property nor notorious. Moralists distinguish the following kinds of secrets:

(a) a natural secret, which is one that cannot be revealed without causing injury or annoyance to another, as when the revelation will harm a person in his reputation, honor, influence property. It is called natural for it arises from the very nature of the matter of the secret and not from any promise or contract.

(b) a promised secret, which is one that a person has promised, but only after he had already learned it, to guard inviolate. It makes no difference whether the promisor learned the secret from the promisee or from some other source;