Second Childhood is a science fiction short story by Clifford D. Simak frist published in Galaxy Science Fiction magazine in 1951.

Achieving immortality is only half of the problem.
The other half is knowing how to live with it once
it's been made possible—and inescapable!

Clifford Donald Simak (1904 -1988) was an American science fiction writer. He was honored by fans with three Hugo Awards and by colleagues with one Nebula Award. The Science Fiction Writers of America made him its third SFWA Grand Master and the Horror Writers Association made him one of three inaugural winners of the Bram Stoker Award for Lifetime Achievement.