Noun
The pin or spindle on which a wheel revolves, or which revolves with a wheel.
A transverse bar or shaft connecting the opposite wheels of a car or carriage; an axletree.
An axis; as, the sun's axle.
Source: Webster's dictionaryLike bones to the human body, the axle to the wheel, the wing to the bird, and the air to the wing, so is liberty the essence of life. Whatever is done without it is imperfect. José Martí
We are apt to imagine that this hubbub of Philosophy, Literature, and Religion, which is heard in pulpits, lyceums, and parlors, vibrates through the universe, and is as catholic a sound as the creaking of the earth's axle. But if a man sleeps soundly, he will forget it all between sunset and dawn. Henry David Thoreau
A universe of worlds, a dimensional macrocosm of worlds-and in all of them one thing that was always the same; one unifying force that was undeniably good, even if it now happened to be imprisoned in an evil place; the Talisman, axle of all possible worlds. Stephen King
Aesop's Fly, sitting on the axle of the chariot, has been much laughed at for exclaiming: What a dust I do raise! Thomas Carlyle
It's like the Tibetan Wheel of the Passions. As the wheel turns, the values and feelings on the outer rim rise and fall, shining or sinking into darkness. But true love stays fastened to the axle and doesn't move. Haruki Murakami
The fly sat upon the axle of the chariot-wheel and said "What a lot of dust I raise!" Greek Proverb