88. The axiom of Dionysius does not mean: (a) that an act cannot be essentially or substantially good and at the same time accidentally bad (see 78), for, if even one circumstance not properly attended to could change an act from good into bad, how few good acts would be done even by the most saintly persons! Example: Caius who sacrifices himself for the service of God and his neighbor, now and then feels some slight vanity over his work. His acts remain substantially good. (b) The axiom does not mean that an act cannot be substantially bad and yet have good circumstances that diminish its badness (see 81). 89. Morality of the External Act.--Having considered the morality of the internal act, we shall now turn to the external act (such as giving an alms, stealing, and the like), and inquire whether it has a morality of its own distinct from that of the internal act (see 56 Sqq.). 90. If the external act be considered precisely as it is the object, or effect, of the internal act of the will, it does not add any essential morality to the internal act, since, having no freedom of its own, it is moral only in so far as it proceeds from the will. In this sense, then, he who gives an alms to the poor, and he who would give it if he could, are equal in goodness of will; and he who wishes to defraud, and he who actually defrauds, are equal in malice of will. 91. If the external act be considered precisely as it is the term towards which the internal act tends, it completes the essential morality of the internal act by extending and communicating it without. For, though this external act cannot add a distinct morality of its own, it does carry the internal morality to its natural conclusion and diffuses its good or evil. In this sense, he who actually gives an alms is more deserving than he who really desires to give but is unable; and he who really defrauds is more reprehensible than he who wishes to defraud but cannot. 92. If the external act be considered precisely as something added to the internal act, it can increase the accidental morality of the internal act by the reaction of the external circumstances on the will. This can happen in such ways as the following: (a) the performance of the external act, being pleasurable or difficult, increases or decreases the intensity of the will to act; (b) the performance of the external act, since it requires more time than the internal act, prolongs the latter; (c) the external act by reason of repetition may also increase the strength of the internal act. 93. Furthermore, it is through the external act that edification or scandal is given, that penalties or rewards for overt action are deserved, etc. Examples: Titus bears murderous hatred towards Balbus, but keeps it concealed. Caius also hates Balbus, and first calumniates him, thus giving scandal, and then kills him, thus making himself liable before the law.