...And It Comes Out Here by Lester Del Rey

There is one fact no sane man can quarrel with ...
everything has a beginning and an end.
But some men aren't sane; thus it isn't always so!
A rather special take on time travel - how do you convince your earlier self it is safe to get into the time machine?
...And It Comes Out Here was first published in Galaxy Science FictionFebruary 1951.
Total Running Time (TRT): 33 min.
Lester del Rey (1915 - 1993) was an American science fiction author and editor. He was the author of many books in the juvenile Winston Science Fiction series, and the editor at Del Rey Books, the fantasy and science fiction imprint of Ballantine Books.
Del Rey was awarded the 1972 E. E. Smith Memorial Award for Imaginative Fiction (for the Skylark) by the New England Science Fiction Association and a special 1985 Balrog Award for his contributions to fantasy, voted by fans and organized by Locus Magazine. The Science Fiction Writers of America named him its 11th SFWA Grand Master in 1990.