| 31. | The timeline is generally very short, although there are no hard and fast rules.
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| 32. | "There aren't any hard and fast rules, " she said.
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| 33. | There are no hard and fast rules for picking colors.
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| 34. | Still, no hard and fast rules apply in such matters.
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| 35. | Instead, we set hard and fast rules and hide behind them like torch-bearing hordes.
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| 36. | "There's no hard and fast rule you can draw.
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| 37. | These needn't be hard and fast rules, of course.
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| 38. | The only hard and fast rule is, Don't leave dirty dishes in the sink ."
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| 39. | Chong said, " the act does not lend itself to a hard and fast rule.
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| 40. | There is no hard and fast rule that users must always log in to edit.
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