Eternity

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Eternity in common parlance means infinite time that never ends (or the quality, condition or fact of being eternal). In classical philosophy, however, it is defined as what exists outside time as describing supranatural beings and forces, whereas sempiternity corresponds to the infinitely temporal, non-metaphoric definitions, as recited in requiem prayers for the dead. Thomas Hobbes and many others in the Age of Enlightenment drew on the classical distinction to put forward metaphysical hypotheses such as “eternity is a permanent Now”.

Eternity as infinite duration is an important concept in many religions, where the god or gods are said to endure eternally. Some, such as Aristotle, would say the same about the natural cosmos in regard to both past and future eternal duration, and like the eternal Platonic forms, immutability was considered essential. Today cosmologists, philosophers, and others look to analyses of the concept from across cultures and history. They debate, among other things, whether an absolute concept of eternity has real application such for the fundamental laws of physics such as the arrow of time in entropy.

Infinity Symbol

Philosophy

Symbolism

See also: Engagement ring, eternity ring, and wheel of time

Eternity is often symbolized by the endless snake, swallowing its own tail, the ouroboros (or oroboros). The circle, band or ring is also commonly used as a symbol for eternity, as is the mathematical symbol of infinity, $infinity sign$ . Symbolically these are reminders that eternity has no beginning/end.

infinity symbols

Vector Auspicious Symbol Mongolia Buddhism

Endless Knot, Auspicious Symbol – Mongolia

One common form of the Endless Knot

References

“eternity, n.” 1. and 2. OED Online. September 2019. Oxford University Press. https://www.oed.com/view/Entry/64704 (accessed October 26, 2019).
Mr. Hobbes Considered in his Loyalty, Religion, Reputation, and Manners. By way of Letter to Dr. Wallis (English autobiography) T. Hobbes, 1662 at p.50
“Stanford Encyclopedia of Philosophy, Eternity”. Plato.stanford.edu. Retrieved June 13, 2016.
Yu, Jiyuan The Structure of Being in Aristotle’s Metaphysics Springer, 2003, p. 188
Boedder, Bernard. “Natural Theology”. University of Notre Dame.
http://plato.stanford.edu/entries/eternity/ Entry in the Stanford Encyclopedia of Philosophy on Eternity.
http://www.iep.utm.edu/g/god-time.htm Entry in the Internet Encyclopedia of Philosophy on the relationship between God and Time.