[M]an is an animal. It was away out there on the prairies, among the green corn rows, one beautiful June morning—a long time ago it seems to me now—that this revelation really came to me. And I repeat it here, as it has grown to seem to me, for the sake of a world which is so wise in many things, but so darkened and wayward regarding this one thing. However averse to accepting it we may be on account of favourite traditions, man is an animal in the most literal and materialistic meaning of the word. Man has not a spark of so-called 'divinity' about him. In important respects he is the most highly evolved of animals; but in origin, disposition, and form he is no more 'divine' than the dog who laps his sores, the terrapin who waddles over the earth in a carapace, or the unfastidious worm who dines on the dust of his feet. Man is not the pedestalled individual pictured by his imagination—a being glittering with prerogatives, and towering apart from and above all other beings. He is a pain-shunning, pleasure-seeking, death-dreading organism, differing in particulars, but not in kind, from the pain-shunning, pleasure-seeking, death-dreading organisms below and around him. Man is neither a rock, a vegetable, nor a deity. He belongs to the same class of existences, and has been brought into existence by the same evolutional processes, as the horse, the toad that hops in his garden, the firefly that lights its twilight torch, and the bivalve that reluctantly feeds him.

MAN IS FUNDAMENTALLY AN ANIMAL. Animals, as distinct from man, are not machine-like, not sadistic; their societies, within the same species, are incomparably more peaceful than those of man. The basic question, then is: What has made the animal, man, degenerate into a machine? When I say "animal," I do not mean anything bad, cruel or "base"; I am stating a biological fact. Man has developed the peculiar concept that he is not an animal at all, but, well — man; a creature which long since has shed that which is "bad," which is "animal." He demarcates himself in all possible ways from the bad animal and points, in proof of his "being better," to culture and civilization which distinguish him from the animal. He shows, in his whole behavior, his "theories of values," his moral philosophies, his "monkey trials" and such, that he does not want to be reminded of the fact that basically he is an animal, an animal, furthermore, which has much more in common with the "animal" than with that being which he asserts to be and dreams of being. The theory of the German Übermensch has this origin. Man shows by his maliciousness, his inability to live in peace with his kind, his wars, that what distinguishes him from the other animals is only his unbounded sadism and the mechanical trinity of the authoritarian concept of life, mechanistic science and the machine. If one looks at the results of civilization as they present themselves over long periods of time, one finds that these contentions of man are not only erroneous; more than that, they seem to be made expressly for the purpose of making man forget that he is an animal.

MAN, n.
An animal so lost in rapturous contemplation of what he thinks he is as to overlook what he indubitably ought to be. His chief occupation is extermination of other animals and his own species, which, however, multiplies with such insistent rapidity as to infest the whole habitable earth and Canada.

Man, n. An animal so lost in rapturous contemplation of what he thinks he is as to overlook what he indubitably out to be. His chief occupation is the extermination of other animals and his own species, which, however, multiplies with such insistent rapidity as to infest the whole habitable earth and Canada.

Man is a political animal. A man who lives alone is either a Beast or a God

Man is a tool using animal. Without tools he is nothing, with tools he is all.

[M]an also was once a wild animal. And it is impossible to understand the things men do—many of them are so horrible and idiotic—unless we take into account the fact that this agricultural and town-building being whom we see when we look in a mirror was once a literal beast of the field, clothed in natural hair, without mercy, modesty, matrimony, or religion, living on roots, fruits, honey, and birds' eggs, and contending doubtfully with other animals about him for life.

Man is an animal that diddles, and there is no animal that diddles but man.

To call a man an animal is to flatter him; he's a machine, a walking dildo. It's often said that men use women. Use them for what? Surely not pleasure.

Man is a tool-using animal...Without tools he is nothing, with tools he is all.

those who have more often regarded with admiration the stature of men will understand by the word ‘man’ an animal of upright stature, while those who are wont to regard a different aspect will form a different common image of man, such as that man is a laughing animal, a feather-less biped, or a rational animal.

Man is man because he is free to operate within the framework of his destiny. He is free to deliberate, to make decisions, and to choose between alternatives. He is distinguished from animals by his freedom to do evil or to do good and to walk the high road of beauty or tread the low road of ugly degeneracy.

Man is the only animal for whom his own existence is a problem which he has to solve.

Man [is a] tool-making animal.