if one knows what's good for one

Fig. one had better do what is expected of one. You'd better be on time if you know what's good for you. If you know what's good for you, you'll call and apologize.

Common Names:

Name	Pronounced	Usage
Nora	NAWR-ə (English), NO-rah (German)	Irish, English, Swedish, Norwegian, Danish, German, Dutch, Italian
Ken	[ken]
Gavrilo	-	Serbian
Zibiah	-	Biblical
BrÉAnainn	-	Ancient Irish
Lindy	LIN-dee	English