"Everything flows out and in; everything has its tides; all things rise and fall; the pendulum-swing manifests in everything; the measure of the swing to the right, is the measure of the swing to the left; rhythm compensates"
-- The Kybalion.
"There is always an action and reaction; an advance and a retreat; a rising and sinking; manifested in all of the airs and phenomena of the Universe. Suns, worlds, men, animals, plants, minerals, forces, energy, mind and matter, yes, even Spirit, manifests this Principle. The Principle manifests in the creation and destruction of worlds; in the rise and fall of nations in the life history of all things; and finally in the mental states of Man."