Thomas Aquinas

“ No man wills and works evil to himself, except he apprehend it under the aspect of good. For even they who kill themselves, apprehend death itself as a good, considered as putting an end to some unhappiness or pain. ”

“ The knowledge of truth is lovable in itself: hence Augustine says that men love it when it enlightens. But accidentally, the knowledge of truth may become hateful, in so far as it hinders one from accomplishing one's desire. ”

“ Hence a sheep hates the wolf universally. On the other hand, anger is always caused by something in particular: because it is caused by some action of the one that hurts us; and actions proceed from individuals. For this reason the Philosopher says (Rhet. ii, 4) that "anger is always directed to something singular, whereas hatred can be directed to a thing in general."
But according as hatred is in the intellectual part, since it arises from the universal apprehension of the intellect, it can regard the universal in both ways. ”

“ And it happens that some men account themselves as being principally that which they are in their material and sensitive nature. Wherefore they love themselves according to what they take themselves to be, while they hate that which they really are, by desiring what is contrary to reason. ”

“ Therefore it is impossible for hatred to be stronger than love absolutely.
But furthermore, love must needs be, absolutely speaking, stronger than hatred. Because a thing is moved to the end more strongly than to the means. Now turning away from evil is directed as a means to the gaining of good. Wherefore, absolutely speaking, the soul's movement in respect of good is stronger than its movement in respect of evil.
Nevertheless hatred sometimes seems to be stronger than love, for two reasons. First, because hatred is more keenly felt than love. ”

“ It would seem that a thing cannot be an object of universal hatred. Because hatred is a passion of the sensitive appetite, which is moved by an apprehension in the senses. But the senses cannot apprehend the universal. Therefore a thing cannot be an object of universal hatred. ”

“ The miser hates something accidental to himself, but not for that reason does he hate himself: thus a sick man hates his sickness for the very reason that he loves himself. Or we may say that avarice makes man hateful to others, but not to himself. In fact, it is caused by inordinate self-love, in respect of which, man desires temporal goods for himself more than he should.
Art. 5 - Whether a man can hate the truth? Objection 1: It would seem that a man cannot hate the truth. For good, true, and being are convertible. But a man cannot hate good. ”

“ Now we should consider in each thing, what agrees with it, before that which disagrees: since a thing disagrees with another, through destroying or hindering that which agrees with it. Consequently love must needs precede hatred; and nothing is hated, save through being contrary to a suitable thing which is loved. And hence it is that every hatred is caused by love. ”

“ I answer that, Good, true and being are the same in reality, but differ as considered by reason. For good is considered in the light of something desirable, while being and true are not so considered: because good is "what all things seek." ”

“ But accidentally it happens that a man hates himself: and this in two ways. First, on the part of the good which a man wills to himself. For it happens sometimes that what is desired as good in some particular respect, is simply evil; and in this way, a man accidentally wills evil to himself; and thus hates himself. Secondly, in regard to himself, to whom he wills good. For each thing is that which is predominant in it; wherefore the state is said to do what the king does, as if the king were the whole state. Now it is clear that man is principally the mind of man. ”

“ The reason why we love those who are straightforward is that they make known the truth, and the knowledge of the truth, considered in itself, is a desirable thing.
Art. 6 - Whether anything can be an object of universal hatred? ”

“ Nevertheless the sensitive powers, both of apprehension and of appetite, can tend to something universally. Thus we say that the object of sight is color considered generically; not that the sight is cognizant of universal color, but because the fact that color is cognizant by the sight, is attributed to color, not as being this particular color, but simply because it is color. ”

“ Accordingly hatred in the sensitive faculty can regard something universally: because this thing, by reason of its common nature, and not merely as an individual, is hostile to the animal---for instance, a wolf in regard to a sheep. ”

“ Thirdly, a particular truth is hated, as being repugnant, inasmuch as it is in the intellect of another man: as, for instance, when a man wishes to remain hidden in his sin, he hates that anyone should know the truth about his sin. ”

“ Hence the heat of a hectic fever, though greater, is nevertheless not felt so much as the heat of tertian fever; because the heat of the hectic fever is habitual and like a second nature. For this reason, love is felt more keenly in the absence of the object loved ”

“ And thus man sometimes hates a particular truth, when he wishes that what is true were not true. Secondly, according as truth is in man's knowledge, which hinders him from gaining the object loved: such is the case of those who wish not to know the truth of faith, that they may sin freely ”

“ Therefore many hate themselves.
Objection 2: Further, him we hate, to whom we wish and work evil. But sometimes a man wishes and works evil to himself, e.g. a man who kills himself. Therefore some men hate themselves. ”