The duty of returning good for evil goes even further than clemency and the pardon of injuries: for this is nothing more than to abstain from wronging one’s enemies. But we should do more: we must be capable of doing good to our enemies when they deserve it, or need it; and further still, we should try to carry the virtue even so far as to interdict ourselves any feeling of pride, which would naturally arise in a heart great enough to avenge itself by benefits.
The philosopher Spinoza has admirably expressed this doctrine: “Hatred must be overcome not by hatred, but by love and generosity.”
74. Duties of kindness towards animals.—Among the moralists, there are some who do not admit that we have any duties towards beings inferior to man, namely, animals; others, on the contrary, do not admit any duties towards any above man, consequently towards God; others, in fine, deny that man has any towards himself. There are scarcely any duties, except those towards our fellow-beings, that have not been questioned by one or the other of the moralists: some connecting the latter with the duties towards ourselves, or the duties towards God.
According to us, there are four classes of duties, and these four classes are not reducible the one to the other.[52]
No one can deny from a practical point of view that there are duties towards animals; for we know very well that it is not permitted to maltreat them or cause them unnecessary pain; and every enlightened conscience condemns cruelty to animals. Therefore can there be here question only of a speculative scruple. It can be very well seen that there is a duty here; but it is, they say, a duty towards ourselves; for it is our duty not to be cruel, and cruelty toward animals accustoms us too easily to cruelty toward men. But this is a very useless subtlety, and too roundabout a way to express a very simple thing. We prefer simply saying that kindness toward an animal is a duty toward that animal.
Besides, the reasons given against the duties toward animals, appear to us more specious than substantial. It is said that animals, having neither will nor intelligence, are not persons, but things; that, consequently, they have no rights, and that we can have no duties toward what has no rights.
These are inadmissible subtleties. One can, in law terms, divide all objects of nature into persons and things; and animals, not being persons, are things, in the sense that they can be appropriated. But, strictly speaking, can a being endowed with sensibility be called a thing? Is it true, moreover, that an animal has no intelligence, no will—that consequently it has not any vestige of personality? Is it true again that an animal has no kind of rights? This, in the first place, is to suppose what is in question. And, moreover, does not conscience say to us that an animal which has served us long years with affection has thereby acquired a certain right to our gratitude? And, finally, is it really true that we have only duties towards those that have duties towards us? That were a very perilous maxim in social morality. We are told not to be cruel to animals in order not to become cruel towards men. But if one were sure not to become cruel towards men, would it follow therefrom that it is permitted to be so towards animals? No, it will be said; but it is because cruelty, though its object be only animals, is in itself a vice, base and unworthy of man. One should not conclude from that, that cruelty is a direct crime against them. But for the same reason it might be maintained that we have no duties toward others, and only toward ourselves; injustice, cruelty, are odious vices in themselves; goodness and justice, noble qualities; we should shun the one and avoid the other out of respect for ourselves, and regardless of the object of these vices and virtues. If, despite these considerations, it is then thought better to make, nevertheless, a distinction between the duties toward others and those toward ourselves, there should for the same reason be made a distinct class of the duties toward animals. Finally, if we owe nothing to animals, it is not very clear why acts hypothetically indifferent should be treated as cruelties; nor why such acts should be considered as lowering and dishonoring the character.
On the whole, and to avoid all theoretical difficulties, it may be said that we have duties, if not toward animals, at least in regard to animals.
Our duties in regard to animals, are they, however, of a kind to make us doubt our right to destroy or reduce them to servitude?
The destruction of animals may have two causes; it may be for our defense, it may be for our subsistence. As to the first there is no difficulty; the right of legitimate self-defense authorizes us to destroy what would otherwise destroy us. Between us and beasts injurious to man there is evidently a state of natural war, and in that state the law is that might makes right. This same law is the one which regulates the relations of the animals between themselves: it is also their law in regard to us. The lion, for instance, might not always be as tenderly inclined as the lion of Androcles or the lion of Florence: it would not be well to trust it. We need not, therefore, even theoretically, entertain any scruples concerning the destruction of injurious animals.