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:
“The lonely Earth amid the balls
That hurry through the eternal halls,
A makeweight flying to the void,
Supplemental asteroid,
Or compensatory spark,
Shoots across the neutral Dark.”
—Ralph Waldo Emerson (1803–1882)
“It is hard living down the tempers we are born with. We
all begin well, for in our youth there is nothing we
are more intolerant of than our own sins writ large in
others and we fight them fiercely in ourselves; but we
grow old and we see that these our sins are of all sins
the really harmless ones to own, nay that they give a
charm to any character, and so our struggle with them
dies away.”
—Gertrude Stein (1874–1946)