hard and fast rules in a sentence

Examples

1. The timeline is generally very short, although there are no hard and fast rules.
2. "There aren't any hard and fast rules, " she said.
3. There are no hard and fast rules for picking colors.
4. Still, no hard and fast rules apply in such matters.
5. Instead, we set hard and fast rules and hide behind them like torch-bearing hordes.
6. "There's no hard and fast rule you can draw.
7. These needn't be hard and fast rules, of course.
8. The only hard and fast rule is, Don't leave dirty dishes in the sink ."
9. Chong said, " the act does not lend itself to a hard and fast rule.
10. There is no hard and fast rule that users must always log in to edit.