Knowing what you can not do is more important than knowing what you can do. In fact, that's good taste.

More from Lucille Ball

• The secret to staying young is to live honestly, eat slowly and lie about your age.
• Use a make-up table with everything close at hand and don’t rush; otherwise you’ll look like a patchwork quilt.
• Use a make-up table with everything close at hand and don't rush; otherwise you'll look like a patchwork quilt. Family Weekly, July 1975
• You see much more of your children once they leave home.