Biological Necessity Quotes

The urgency to mate persists in all people as in all other mammals because of the evolutionary drive to continue the species, the inborn imperative for genes to reproduce and hormonal differences that evolved over millions of years.

Each child is biologically required to have a mother. Fatherhood is a well-regarded theory, but motherhood is a fact.

Some people blow their top, but all people blow their bottom.

Why do we have a brain in the first place? Not to write books, articles, or plays; not to do science or play music. Brains develop because they are an expedient way of managing life in a body.

There is nothing capricious in nature and the implanting of a desire indicates that its gratification is in the constitution of the creature that feel it.

Death? Why this fuss about death? Use your imagination, try to visualize a world without death! Death is the essential condition of life, not an evil.

We realise that natural aptitudes are not interchangeable, and each person must, of biological or spiritual necessity, practise the art for which he is fitted.

Life feeds on life... feeds on life feeds on life... this is neccesary... this is necessary life feeds on life... feeds on life

The death of something living is the price of our own survival, and we pay it again and again. We have no choice. It is the one solemn promise every life on earth is born and bound to keep.

The only possible proof of the existence of water, the most convincing and the most intimately true proof, is thirst.

If we didn't need eight hours of sleep and could survive on six, Mother Nature would have done away with 25 percent of our sleep time millions of years ago. Because when you think about it, sleep is an idiotic thing to do.

It's unfortunate biologically we have to sleep.

Woman does not forget she needs the fecundator, she does not forget that everything that is born of her is planted in her.

I am not [...] asserting that humans are either genial or aggressive by inborn biological necessity. Obviously, both kindness and violence lie within the bounds of our nature because we perpetrate both, in spades. I only advance a structural claim that social stability rules nearly all the time and must be based on an overwhelmingly predominant (but tragically ignored) frequency of genial acts, and that geniality is therefore our usual and preferred response nearly all the time. [...] [T]he center of human nature is rooted in ten thousand ordinary acts of kindness that define our days.

Nothing is arbitrary, nothing is insulated in beauty. It depends forever on the necessary and the useful. The plumage of the bird, the mimic plumage of the insect, has a reason for its rich colors in the constitution of the animal. Fitness is so inseparable an accompaniment of beauty, that it, has been taken for it.

The significant chemicals of living tissue are rickety and unstable, which is exactly what is needed for life.

War is only an invention, not a biological necessity.

There is between sleep and us something like a pact, a treaty with no secret clauses, and according to this convention it is agreed that, far from being a dangerous, bewitching force, sleep will become domesticated and serve as an instrument of our power to act. We surrender to sleep, but in the way that the master entrusts himself to the slave who serves him.

Fathers are biological necessities, but social accidents.

If sleep does not provide a remarkable set of benefits, then it's the biggest mistake the evolutionary process has ever made.

Excrement can never be culturally elaborated to the extent that nutriment can.

Yes. The original argument is defective. Substitute the word 'male' for 'gay,' and you'll see the flaw: 'Male people cannot be normal. If everyone were male starting tomorrow, the human race would die out, so being male cannot be nature's intended way.' Or you could substitute the word 'female.' In either case, the argument makes no sense: Being male or female is perfectly normal.

Somewhere in the child, somewhere in the adult, there is a hard, irreducible, stubborn core of biological urgency, and biological necessity, and biological reason that culture cannot reach and that reserves the right, which sooner or later it will exercise, to judge the culture and resist and revise it.

Children are the living messages we send to a time we will not see. From a biological point of view it is inconceivable that any culture will forget that it needs to reproduce itself. But it is quite possible for a culture to exist without a social idea of children. Unlike infancy, childhood is a social artifact, not a biological category.

Masturbation is not physically necessary. There is already a way by which the male system relieves excessive spermatic fluid quite regularly through the nocturnal emission or wet dream. Monthly menstrual flow expels the female's egg and cleanses the womb. For both sexes, physical or emotional tensions can be released by vigorous activity. Thus, in a biological sense, masturbation for either gender is not necessary. In a gospel sense, it is a sin: Masturbation, a rather common indiscretion, is not approved of the Lord...regardless of what may have been said by others whose 'norms' are lower.