Species Quotes

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We sacrifice other species to our own not because our own has any objective metaphysical privilege over others, but simply because it is ours. It may be very natural to have this loyalty to our own species, but let us hear no more from the naturalists about the "sentimentality" of anti-vivisectionists. If loyalty to our own species - preference for man simply because we are men - is not sentiment, then what is?

Progress means movement in a desired direction, and we do not all desire the same things for our species.

I do not think more credit is due a man for defining a species, than to a carpenter for making a box. But I am foolish and rabid against species-mongers, or rather against their vanity; it is useful and necessary work which must be done; but they act as if they had actually made the species, and it was their own property.

I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race – I am ashamed to belong to such a species.

Bertrand Russell

By merely collecting observations it can be decided whether the mare is as fast as the stallion, or whether male chimpanzees excel their mates in intelligence tests — whereas the human species is forever in a state of change, forever becoming.

Simone de Beauvoir

Even a superficial glance is sufficient to show that all the innumerable forms in which the life-urge of Nature manifests itself are subject to a fundamental law - one may call it an iron law of Nature - which compels the various species to keep within the definite limits of their own life-forms when propagating and multiplying their kind.

I can only speak with that species of indefinite definiteness which mathematicians are, at times, forced to put up with in certain algebraic formulae.

Edgar Allan Poe

All agree in recognising the fact that females exist in the human species; today as always they make up about one half of humanity. And yet we are told that femininity is in danger; we are exhorted to be women, remain women, become women. It would appear, then, that every female human being is not necessarily a woman; to be so considered she must share in that mysterious and threatened reality known as femininity.

Simone de Beauvoir

Of means of persuading by speaking there are three species: some consist in the character of the speaker; others in the disposing the hearer a certain way; others in the thing itself which is said, by reason of its proving, or appearing to prove the point.

I would dare say that today this species is facing a very real and true danger of extinction, and no one can be sure, listen to this well, no one can be sure that it will survive this danger.
Well, the fact that the species would not survive was discussed about 2,000 years ago. I remember that when I was a student I heard of the Apocalypse, a book of prophesy in the Bible. Apparently, 2000 years ago someone realized that this weak species could one day disappear.

Often in evolutionary processes a species must adapt to new conditions in order to survive. Today the atomic bomb has altered profoundly the nature of the world as we know it, and the human race consequently finds itself in a new habitat to which it must adapt its thinking.

Albert Einstein

A grain in the balance will determine which individual shall live and which shall die - which variety or species shall increase in number, and which shall decrease, or finally become extinct.

With its untold depths, couldn't the sea keep alive such huge specimens of life from another age, this sea that never changes while the land masses undergo almost continuous alteration? Couldn't the heart of the ocean hide the last–remaining varieties of these titanic species, for whom years are centuries and centuries millennia?

As soon as somebody demonstrates the art of flying, settlers from our species of man will not be lacking on the moon and Jupiter... Given ships or sails adapted to the breezes of heaven, there will be those who will not shrink from even that vast expanse.

Johannes Kepler

The formation of different languages and of distinct species and the proofs that both have been developed through a gradual process, are curiously parallel.

I do not regard flesh-food as necessary for us at any stage and under any clime in which it is possible for human beings ordinarily to live, I hold flesh-food to be unsuited to our species.

Seeing this gradation and diversity of structure in one small, intimately related group of birds, one might really fancy that from an original paucity of birds in this archipelago, one species had been taken and modified for different ends.

In pain there is as much wisdom as in pleasure: like the latter it is one of the best self preservatives of a species.

Friedrich Nietzsche

Our species is one, and each of the individuals who compose it are entitled to equal moral consideration.

Michael Ignatieff

The truth is sum, ergo cogito — I am, therefore I think, although not everything that is thinks. Is not consciousness of thinking above all consciousness of being? Is pure thought possible, without consciousness of self, without personality? Can there exist pure knowledge without feeling, without that species of materiality which feelings lends to it? Do we not perhaps feel thought, and do we not feel ourselves in the act of knowing and willing? Could not the man in the stove [Descartes] have said: "I feel, therefore I am"? or "I will, therefore I am"? And to feel oneself, is it not perhaps to feel oneself imperishable?

Miguel de Unamuno

The truth is that we need invertebrates but they don't need us. If human beings were to disappear tomorrow, the world would go on with little change.... But if invertebrates were to disappear, I doubt that the human species could last more than a few months.

The ordinary logic has a great deal to say about genera and species, or in our nineteeth century dialect, about classes. Now a class is a set of objects comprising all that stand to one another in a special relation of similarity. But where ordinary logic talks of classes the logic of relatives talks of systems. A system is a set of objects comprising all that stands to one another in a group of connected relations. Induction according to ordinary logic rises from the contemplation of a sample of a class to that of a whole class; but according to the logic of relatives it rises from the comtemplation of a fragment of a system to the envisagement of the complete system.

Charles Sanders Peirce

Religion is a species of mental disease. It has always had a pathological reaction on mankind.

Benito Mussolini

Experience of artificial fertilisation, such as is effected with ornamental plants in order to obtain new variations in colour, has led to the experiments which will here be discussed. The striking-regularity with which the same hybrid forms always reappeared whenever fertilisation took place between the same species induced further experiments to be undertaken, the object of which was to follow up the developments of the hybrids in their progeny.

The human species, according to the best theory I can form of it, is composed of two distinct races, the men who borrow and the men who lend.