Eternal youth is the concept of human physical immortality free of aging. The youth referred to is usually meant to be in contrast to the depredations of aging, rather than a specific age of the human lifespan.
So far, achieving eternal youth remains beyond the capabilities of science. However, much research is currently being conducted in the sciences of genetics which may allow manipulation of the aging process at some time in the future.
Eternal youth is common in mythology, and it remains a popular theme in fiction.
Famous quotes containing the words eternal and/or youth:
“One may say the eternal mystery of the world is its comprehensibility.”
—Albert Einstein (1879–1955)
“In Homer and Chaucer there is more of the innocence and serenity of youth than in the more modern and moral poets. The Iliad is not Sabbath but morning reading, and men cling to this old song, because they still have moments of unbaptized and uncommitted life, which give them an appetite for more.”
—Henry David Thoreau (1817–1862)