60. Acts Commanded by the Will.—The second class of acts that are under the control of the will are those that proceed, not from the will itself, but from the other powers under the direction of the will.
61. Acts commanded by the will are of various kinds: (a) intellectual acts, such as judgment, reasoning, etc., performed under the direction of the will, (b) sensible acts such as sight, hearing, imagination, the passions of love, hate, etc.; (c) external corporal acts, such as walking, writing, etc. None of the foregoing acts need be commanded by the will, as they may be indeliberate (see 23).
62. The following kinds of acts are not subject to the control of the will: (a) intellectual acts, such as the assent of the reason to self-evident truths, as regards the specification of the act; (b) sensible acts, such as the passions considered as arising from bodily dispositions before they are adverted to; (c) acts of the vegetative life, such as digestion and growth; (d) bodily movements, such as the circulation of the blood and the beating of the heart.
Art. 3: ACTS AS MORAL
(_Summa Theologica_, I-II, qq. 18-20.)
63. In order that an act be a means by which man may tend to his Last End, it is not sufficient that it be human (proceeding from knowledge and will); it must also be morally good.
64. Definition.—Morality is the agreement or disagreement, of a human act with the norms that regulate human conduct with reference to man’s Last End. The act which is in agreement with those norms is morally good; the act which is in disagreement with them is morally bad. An act that neither agrees nor disagrees with the norms of morality, is called morally indifferent.
65. The constitutive norm of morality is that which gives an act its moral quality. (a) Proximately, this is the relation of agreement or disagreement of the act to the rational nature of man considered in its entirety and with reference to its true happiness; (b) remotely, this norm is the relation of the act to God, the Last End of man.
66. Hence, that which makes an act morally good is its agreement with the nature of man as a rational being destined for heaven, and its promotion of the glory of God, which is the purpose of all creation.
67. The manifestative norm of morality is that through which the moral quality of acts is known. (a) Proximately, this is right reason, which is the superior faculty and guide of the will; (b) remotely, it is the divine intellect, from which reason receives its light.