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Updated: June 16, 2025
Therefore the heart of a living creature is triangular, having its least part towards its left side, and the greater towards the right; and doth also open and shut in the least part, by which means it is in continual motion; the first motion is called diastole, that is extending the heart or breast; the other systole, that is, shutting of the heart; and from these all the motions of the body proceed, and that of the pulse which the physicians feel.
In my younger days I visited Fairmount, and it was with a pious reverence that I renewed my pilgrimage to that perennial fountain. Its watery ventricles were throbbing with the same systole and diastole as when, the blood of twenty years bounding in my own heart, I looked upon their giant mechanism.
It seemed but a part of the process that every year the instruments of war were vaster and more powerful, and that armies and explosives outgrew all other growing things.... Three hundred years of diastole, and then came the swift and unexpected systole, like the closing of a fist. They could not understand it was systole.
They may be seen in the systole and diastole of the heart; in the alternate activity and passivity of the lungs; in the feet of the pedestrian, one pausing while the other proceeds; in the waving wings of birds; in the undulation of the sea; in the creation and propagation of sound, and the propagation, at least, of light; in the alternate acceleration and retardation of the earth's motion in its orbit, and in the waving of its poles.
The wound of puncture was 5 cm. below the nipple and 2 cm. to the outside. The left side of the chest was emphysematous and ecchymosed. The heart-sounds were regular, and the elevation of the skin by the blade coincided with the ventricular systole. The blade was removed on the following day, and the patient gradually improved.
Each huge globe of blinding whiteness was as it were clutched, compressed in a systole that was followed by a transitory diastole, and again a systole like a tightening grip, darkness, light, darkness, in rapid alternation. Graham became aware that this strange behaviour of the lights had to do with the people below.
When I contemplate the green serenity of the fields or look into the depths of clear eyes through which shines a fellow-soul, my consciousness dilates, I feel the diastole of the soul and am bathed in the flood of the life that flows about me, and I believe in my future; but instantly the voice of mystery whispers to me, "Thou shalt cease to be!" the angel of Death touches me with his wing, and the systole of the soul floods the depths of my spirit with the blood of divinity.
Lydgate talked persistently when they were in his work-room, putting arguments for and against the probability of certain biological views; but he had none of those definite things to say or to show which give the waymarks of a patient uninterrupted pursuit, such as he used himself to insist on, saying that "there must be a systole and diastole in all inquiry," and that "a man's mind must be continually expanding and shrinking between the whole human horizon and the horizon of an object-glass."
The chains of mountains which crown the two hemispheres, and more than six hundred rivers which flow right to the sea from the feet of these rocks; all the streams which come down from these same reservoirs, and which swell the rivers, after fertilizing the country; the thousands of fountains which start from the same source, and which water animal and vegetable kind; all these things seem no more the effect of a fortuitous cause and of a declension of atoms, than the retina which receives the rays of light, the crystalline lens which refracts them, the incus, the malleus, the stapes, the tympanic membrane of the ear, which receives the sounds, the paths of the blood in our veins, the systole and diastole of the heart, this pendulum of the machine which makes life.
A troop train was speeding north and a hospital train crawling south, their coming and going betrayed only to the ear, for they showed no lights. The one was freighted with youth, health, life; the other with pain, wounds, death. It was the systole and diastole of the Base.
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