Any fool can make a rule And every fool will mind it.

The important thing is to abide by the rule of threes. Either you see a woman three times in quick succession and then never again, or you maintain relations over the years but make sure that the rendezvous are at least three weeks apart.

There is no useful rule without an exception.

No rule is so general, which admits not some exception.

A technical objection is the first refuge of a scoundrel.