One of the major problems encountered in time travel is not that of accidently becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broad-minded and well-adjusted family can't cope with.

More from The Restaurant at the End of the Universe

• If you’ve done six impossible things this morning, why not round it off with breakfast at Milliways, the Restaurant at the End of the Universe?
• There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.
• A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
• After nearly four years of total isolation he was so pleased and relieved to see Ford that he could almost cry. Ford was, on the other hand, an almost immediately annoying person.
• A glummer look replaced the already glum look on Arthur Dent’s face. “So we’re not home and dry,” he said. “We could not even be said,” replied Ford, “to be home and vigorously toweling ourselves off.”
• All eyes were on Ford. Some were on stalks.