Lyrics:

Mack Gordon / Harry RevelOne never knows, does one?When love will come alongThen so suddenly life turns out to be a songOne never knows, does one?The moment or the placeThen right before your eyesSomeone occupies your embraceSomeday look and you'll findTwo hearts were blestSomeday fate may be kindPray for the futureHope for the bestOne never knows, does one?That's just the way it goesAll at once you hear'Hold me. Caress me'And then love may comeBut when, one never knows

Billie Holiday One Never Knows, Does One