Progress of mankind is the decadence of humanity.

La décadence est la grande minute où une civilisation devient exquise.

[F]rom the earliest periods of time [man] alone has divided the empire of the world between him and Nature. ...[H]e rather enjoys than possesses, and it is by constant and perpetual activity and vigilance that he preserves his advantage, for if those are neglected every thing languishes, changes, and returns to the absolute dominion of Nature. She resumes her power, destroys the operations of man; envelopes with moss and dust his most pompous monuments, and in the progress of time entirely effaces them, leaving man to regret having lost by his negligence what his ancestors had acquired by their industry. Those periods in which man loses his empire, those ages in which every thing valuable perishes, commence with war and are completed by famine and depopulation. Although the strength of man depends solely upon the union of numbers, and his happiness is derived from peace, he is, nevertheless, so regardless of his own comforts as to take up arms and to fight, which are never-failing sources of ruin and misery. Incited by insatiable avarice, or blind ambition, which is still more insatiable, he becomes callous to the feelings of humanity; regardless of his own welfare, his whole thoughts turn upon the destruction of his own species, which he soon accomplishes. The days of blood and carnage over, and the intoxicating fumes of glory dispelled, he beholds, with a melancholy eye, the earth desolated, the arts buried, nations dispersed, an enfeebled people, the ruins of his own happiness, and the loss of his real power.

When the mind of man ceases to thrust outward, it begins to contract and wither.

What is wrong with modern civilization which produces at the roots these signs of sterility and racial decadence? But this is nothing new, it has happened before and history is full of examples of it. Imperial Rome in its decline was far worse. Is there a cycle governing this inner decay and can we seek out the causes and eliminate them? Modern industrialism and the capitalist structure of society cannot be the sole causes, for decadence has often occurred without them. It is probable, however, that in their present forms they do create an environment, a physical and mental climate, which is favourable for the functioning of those causes. If the basic cause is something spiritual, something affecting the mind and spirit of man, it is difficult to grasp though we may try to understand it or intuitively feel it. But one fact seems to stand out: that a divorce from the soil, from the good earth, is bad for the individual and the race. The earth and the sun are the sources of life and if we keep away from them for long life begins to ebb away. Modern industrialized communities have lost touch with the soil and do not experience that joy which nature gives and the rich glow of health which comes from contact with mother earth. They talk of nature’s beauty and go to seek it in occasional week-ends, littering the countryside with the product of their own artificial lives, but they cannot commune with nature or feel part of it. It is something to look at and admire, because they are told to do so, and then return with a sigh of relief to their normal haunts; just as they might try to admire some classic poet or writer and then, wearied by the attempt, return to their favourite novel or detective story, where no effort of mind is necessary. They are not children of nature, like the old Greeks or Indians, but strangers paying an embarrassing call on a scarce-known distant relative. And so they do not experience that joy in nature’s rich life and infinite variety and that feel

As soon as man began considering himself the source of the highest meaning in the world and the measure of everything, the world began to lose its human dimension, and man began to lose control of it.

Decadence is the total loss of unconsciousness, which is the very basis of life. Could it think, the heart would stop beating.

As a result of letting the drive for power dominate existence, man is bound to lose his sense for nature's otherness. Nature becomes a utensil, an object to be used. The world ceases to be that which is and becomes that which is available. It is a submissive world that modern man is in the habit of sensing, and he seems content with the riches of thinghood. Space is the limit of his ambitions, and there is little he desires besides it. Correspondingly, man’s consciousness recedes more and more in the process of reducing his status to that of a consumer and manipulator. He has enclosed himself in the availability of things, with the shutters down and no sight of what is beyond availability.

It used to be said, that in places like this, nature eventually failed to support man, the truth is exactly the reverse, here man failed to support nature. Ten thousand years ago man regarded the natural world as divine, but as he domesticated animals and plants so nature lost some of its mystery and appeared to be little more than a larder that could be raided with impunity.

All the works of man perish and decay.

The cultivated man of today is gradually turning away from natural things, and his life is becoming more and more abstract. Natural (external) things become more and more automatic, and we observe that our vital attention fastens more and more on internal things.

As humanity perfects itself, man becomes degraded. When everything is reduced to the mere counter-balancing of economic interests, what room will there be for virtue? When Nature has been so subjugated that she has lost all her original forms, where will that leave the plastic arts? And so on. In the mean time, things are going to get very murky.

Man has the lost the capacity to foresee and to forestall. He will end up destroying the earth.

[T]he energies of our system will decay, the glory of the sun will be dimmed, and the earth, tideless and inert, will no longer tolerate the race which has for a moment disturbed its solitude. Man will go down into the pit and all his thoughts will perish.