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April 10, 2026
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"Great fleas have little fleas upon their backs to bite 'em, And little fleas have lesser fleas, and so ad infinitum. And the great fleas themselves, in turn, have greater fleas to go on; While these again have greater still, and greater still, and so on."
"Jumping spiders (Portia spp.) plan routes towards their prey; and hermit crabs (Pagurus berhnardus) show evidence of motivational trade-offs during shell choice. Furthermore, if their brains are implanted with electrodes, garden snails (Helix aspersa) will learn to displace a lever, an action new to their behavioural repertoire, to stimulate those neural regions involved in sexual behaviour. None of these represent concrete evidence of conscious emotion, but they at least suggest that if cephalopods are to now be protected across Europe, then arachnids, decapod crustaceans and gastropods should be too."
"This could potentially reduce consumption of vertebrate meat, moving farming away from intensive agriculture towards higher welfare organic systems. Yet entomophagy can only make a significant difference if insects are mass-produced [...] What if these trillions of insects also suffer? If we neglect this possibility, it is feasible that we will move from one intensive poor-welfare system to another, where conscious organisms are inhumanely farmed in greater numbers than anything we have seen before."
"I too am subject to division of my will-to-life against itself. In a thousand ways my existence stands in conflict with that of others. The necessity to destroy and to injure life IS imposed upon me. If I walk along an unfrequented path, my foot brings destruction and pain upon the tiny creatures which populate it. In order to preserve my own existence, I must defend myself against the existence which injures it. I become a persecutor of the little mouse which inhabits my house, a murderer of the insect which want to have its nest there, a mass-murderer of the bacteria which may endanger my life. I get my food by destroying plants and animals. My happiness is built upon injury done to my fellow-men."
"If evolutionary ethics were sound, we ought to be entirely indifferent as to what the course of evolution may be, since whatever it is is thereby proved to be the best."
"Ultimately, we don't know for sure that invertebrates suffer in a comparative way to other animals, but given that at any moment the earth contains a billion billion insects, it seems prudent to take the precautionary principle. The potential for these insects to consciously experience some kind of suffering must have an impact on how we interact with them, and our crop fields are a very good place to start."
"If I died and was offered to be born again as an insect or cease to exist, I would definitely choose not to exist [...] There is enormous inequality among the fates of insects. Some die very young, either as larvae, pupae, or just after having emerged from the pupa stage as adults, and it is difficult to see how most such lives can be good on balance. Death often seems very painful so, because their lives are so short, they do not include enough positive wellbeing to compensate their suffering."
"We have literally no idea at what level of brain complexity consciousness stops. Most people say, "For heaven's sake, a bug isn't conscious." But how do we know? We're not sure anymore. I don't kill bugs needlessly anymore. [...] Probably what consciousness requires is a sufficiently complicated system with massive feedback. Insects have that."
"Several scientists and philosophers argue that because invertebrates such as insects, spiders, worms and snails may very well be able to feel pain or suffering, our moral concern should be extended to such beings. Different kinds of evidence have been used to infer whether they can feel pain, including facts about their nervous systems, observations of behavior that indicate learning to avoid harm, and evolutionary arguments about whether feelings of pain would give a fitness advantage. Despite a growing number of studies on invertebrate pain, the evidence is not conclusive, which raises the political and ethical question of what to do under this uncertainty. The uncertainty supports that we should care about the potential suffering of invertebrates such as insects, and take and avoid at least some actions to reduce their potential suffering in case they can suffer. Potential invertebrate suffering is worth paying attention to, even if it is unlikely that they can suffer, primarily because of the large number of individuals involved and the severity of the harms that they endure. For instance, thousands of insects can be killed by boiling to produce one piece of silk clothing. This means that if such invertebrates can suffer substantially, their suffering would be a large-scale ethical disaster. In addition, the fact that invertebrates are so neglected should appeal to effective altruists and others looking to have an outsized impact."
"[B]ees and other members of the vast class of insects are all capable of sophisticated, learnt, non-stereotyped behaviours that we associate with consciousness if carried out by people."
"Y: What are your opinions concerning the propriety of using silk? Z: I disapprove of the act of depriving the living grubs of their silk. I however understand, that numbers of them generally die naturally while enclosed in their silk; also that the silk of these is the most esteemed; and this of course may be used. Though I am averse to the act of depriving the living ones of their natural clothing, and substituting bran in its stead; but I severely censure the usual mode of baking them to death in an oven."
"So, given that we can't be sure whether insects experience pain, how should we treat these creatures? When I was teaching insect anatomy and physiology I insisted that the students anesthetized insects before conducting experiments that we would expect to inflict pain on a mouse. [...] It seems ethically obligatory to guard against the possibility that insects feel pain. If we use anesthetic and it turns out that insects don't experience pain, the material cost of our mistake is very low [...] However, if we don't use anesthetic and it turns out that the insects were in agony, then the moral cost of our mistake is quite high."
"One cool autumnal night, while lying by his camp-fire in the woods, he observed that the mosquitoes flew in the blaze and were burned. , who wore on his head a tin utensil which answered both as a cap and a mush pot, filled it with water and quenched the fire, and afterwards remarked, "God forbid that I should build a fire for my comfort, that should be the means of destroying any of His creatures.""
"And the poor beetle, that we tread upon, In corporal sufferance finds a pang as great As when a giant dies."
"Considerable empirical evidence supports the assertion that insects feel pain and are conscious of their sensations. In so far as their pain matters to them, they have an interest in not being pained and their lives are worsened by pain. Furthermore, as conscious beings, insects have future (even if immediate) plans with regard to their own lives, and the death of insects frustrates these plans. In that sentience appears to be an ethically sound, scientifically viable basis for granting moral status and in consideration of previous arguments which establish a reasonable expectation of consciousness and pain in insects, I propose the following, minimum ethic: We ought to refrain from actions which may be reasonably expected to kill or cause nontrivial pain in insects when avoiding these actions has no, or only trivial, costs to our own welfare."
"That does not mean that we should launch a campaign for insect rights. We still do not know enough about insect subjective experiences to do that; and, in any case, the world is far from being ready to take such a campaign seriously. We need first to complete the extension of serious consideration to the interests of vertebrate animals, about whose capacity for suffering there is much less doubt."
"The question of pain in invertebrates will be extremely difficult to resolve—if, indeed, it is resolvable. In the meantime, perhaps it can be agreed that it is most appropriate to concentrate efforts on maintaining and improving the general well-being of invertebrates used in research, that is, to ensure that these animals are kept in the best and most appropriate conditions during their lives in the laboratory; given the benefit of the doubt in procedures which have the potential to cause pain and distress; and, when the time comes, killed in the most humane manner possible."
"It must be said that Marx's was a narrow and impoverished view of the meaning of the rights of man, even in their late eighteenth-century forms: it treated them only as symptomatic of the individualism and contradictions of bourgeois life."
"Rights are central to the theoretical tradition of liberalism (apart from its utilitarian strand), so that when they are violated in its name, this goes against the grain, so to speak, even if the violations are fully justifed. Marxism, by contrast, displays no such tension. It is ... from its origins committed to an ideal of freedom whose coming realization it labels human emancipation. It has never been similarly committed, as a matter of principle, to the promulgation and protection of rights that, when respected, serve to guarantee freedoms."
"Every person has the choice between Good and Evil. Choose Good, and stand against those who would choose Evil."
"The penalty good men pay for indifference to public affairs is to be ruled by evil men."
"Bene facere et male audire regium est."
"The best antidote against evils of all kinds, against the evil thoughts that haunt the soul, against the needless perplexities which distract the conscience, is to keep hold of the good we have. Impure thoughts will not stand against pure words and prayers and deeds. Little doubts will not avail against great certainties. Fix your affections on things above, and then you will less and less be troubled by the cares, the temptations, the troubles of things on earth."
"So far any one shuns evils, so far as he does good."
"There is some soul of goodness in things evil, Would men observingly distil it out."
"He who does evil that good may come, pays a toll to the devil to let him into heaven."
"We too often forget that not only is there a "soul of goodness in things evil," but very generally a soul of truth in things erroneous."
"Good and evil deeds are not equal. Repel evil by that (deed) which is better. Then you will see that he with whom you had enmity will become your devoted friend."
"So whoever does an atom’s weight of good will see it, and whoever does an atom’s weight of evil will see it."
"Evil and good are God's right hand and left."
"Every soul will taste death. And We test you with evil and with good as trial; and to Us you will be returned."
"For the good that I would I do not; but the evil which I would not, that I do."
"Be not overcome of evil, but overcome evil with good."
"Evil communications corrupt good manners."
"How shall God judge the world? For if the truth of God hath more abounded through my lie unto his glory; why yet am I also judged as a sinner? And not rather, (as we be slanderously reported, and as some affirm that we say,) Let us do evil, that good may come? whose damnation is just."
"Whoever does a good deed – it is for himself; and whoever does evil – it is against the self. Then to your Lord you will be returned."
"Seek good, not evil, that you may live. Then the Lord God Almighty will be with you, just as you say he is. Hate evil, love good; maintain justice in the courts. Perhaps the Lord God Almighty will have mercy on the remnant of Joseph."
"There shall never be one lost good! What was shall live as before; The evil is null, is nought, is silence implying sound; What was good shall be good, with, for evil, so much good more; On the earth the broken arcs; in the heaven a perfect round."
"Das Leben ist der Güter höchstes nicht Der Uebel grösstes aber ist die Schuld."
"his providence Out of our evil seek to bring forth good."
"Woe unto them that call evil good, and good evil."
"At Gibeon the Lord appeared to Solomon in a dream by night; and God said, “Ask! What shall I give you?” And Solomon said: “You have shown great mercy to Your servant David my father, because he walked before You in truth, in righteousness, and in uprightness of heart with You; You have continued this great kindness for him, and You have given him a son to sit on his throne, as it is this day. Now, O Lord my God, You have made Your servant king instead of my father David, but I am a little child; I do not know how to go out or come in. And Your servant is in the midst of Your people whom You have chosen, a great people, too numerous to be numbered or counted. Therefore give to Your servant an understanding heart to judge Your people, that I may discern between good and evil. For who is able to judge this great people of Yours?” The speech pleased the Lord, that Solomon had asked this thing."
"From seeming evil still educing good."
"Roaming in thought over the Universe, I saw the little that is Good steadily hastening towards immortality, And the vast all that is called Evil I saw hastening to merge itself and become lost and dead."
"What comes to you of good is from God, but what comes to you of evil, (O mankind), is from yourself. And We have sent you, (O Muhammad), to the people as a messenger, and sufficient is God as Witness."
"But then I sigh; and, with a piece of Scripture, Tell them that God bids us do good for evil."
"The evil that men do lives after them; The good is oft interred with their bones."
"I judge things from an evolutionary perspective — "How does this serve and contribute to the process of our own evolution?" — rather than think of good and evil in moral terms. I see the triumph of good over evil as a manifestation of the error-correcting process of evolution."
"The human race is not divided into the kingdom of Ormuzd and the kingdom of Ahriman [the good spirit and the evil spirit in the Zoroastrian religion]. In each man are these two kingdoms of light and darkness."
"Wisdom and goodness to the vile seem vile; Filths savour but themselves."