The Fundamental Things Apply

Ilsa: Play it once, Sam. For old times' sake.
Sam : [lying] I don't know what you mean, Miss Ilsa.
Ilsa: Play it, Sam. Play As Time Goes By.
Sam : [lying] Oh, I can't remember it, Miss Ilsa. I'm a little rusty on it.
Ilsa: I'll hum it for you. Da-dy-da-dy-da-dum, da-dy-da-dee-da-dum...
[Sam begins playing]
Ilsa: Sing it, Sam.
Sam: [singing] You must remember this:

A kiss is still a kiss
A sigh is just a sigh
The fundamental things apply
As time goes by.
And when two lovers woo,
They still say, I love you
On that you can rely
No matter what the future brings-... (Casablanca)

Somewhere, somehow, there will always be a song to make you remember that special someone...