And it sort of jogged a memory of something that I read at school and I read it, and I thought God this is it. So you never can tell. I could find something this afternoon. Andrew Lloyd Webber
You never can tell with bees. A. A. Milne
I really am a good listener because you never can tell when you will pick up something useful-and all in the world any woman has to do to be considered "charming” by men is to listen while they talk. Robert A. Heinlein
I guess fortunate that I'm still around and I emphasize I guess because you never can tell what musicians would be playing had they been around as long as I have. Sonny Rollins
They had a hi-fi phono, boy, did they let it blast Seven hundred little records, all rock, rhythm and jazz But when the sun went down, the rapid tempo of the music fell "C'est la vie", say the old folks, it goes to show you never can tell. Chuck Berry
You never can tell when you do an act Just what the result will be; But with every deed you are sowing a seed, Though the harvest you may not see. Ella Wheeler Wilcox