John Lennon Quote
Life is just what happens to you,
while you're busy making other plans.
'Beautiful Boy' [song] (1980). Although Lennon used the saying in his song, the expression first appeared in an issue of Reader’s Digest magazine dated January 1957: "Life is what happens to us while we are making other plans. - Allen Saunders"
The Quote Investigator[quoteinvestigator.com]